diff --git a/package-lock.json b/package-lock.json
index e9131b7..525a826 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -239,12 +239,6 @@
       "integrity": "sha1-NhIfhFwFeBct5Bmpfb6x0W7DRUI=",
       "dev": true
     },
-    "async-limiter": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
-      "dev": true
-    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -288,15 +282,15 @@
       "dev": true
     },
     "base64-arraybuffer": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
-      "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg=",
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.4.tgz",
+      "integrity": "sha1-mBjHngWbE1X5fgQooBfIOOkLqBI=",
       "dev": true
     },
     "base64id": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/base64id/-/base64id-1.0.0.tgz",
-      "integrity": "sha1-R2iMuZu2gE8OBtPnY7HDLlfY5rY=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
+      "integrity": "sha512-lGe34o6EHj9y3Kts9R4ZYs/Gr+6N7MCaMlIFA3F1R2O5/m7K06AxfSeO5530PEERE6/WyEg3lsuyw4GHlPZHog==",
       "dev": true
     },
     "basic-auth": {
@@ -331,19 +325,10 @@
         "tweetnacl": "^0.14.3"
       }
     },
-    "better-assert": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
-      "integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
-      "dev": true,
-      "requires": {
-        "callsite": "1.0.0"
-      }
-    },
     "blob": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.4.tgz",
-      "integrity": "sha1-vPEwUspURj8w+fx+lbmkdjCpSSE=",
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.5.tgz",
+      "integrity": "sha512-gaqbzQPqOoamawKg0LGVd7SzLgXS+JH61oWprSLH+P+abTczqJbhTR8CmJ2u9/bUYNmHTGJx/UEmn6doAvvuig==",
       "dev": true
     },
     "block-stream": {
@@ -440,12 +425,6 @@
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
       "dev": true
     },
-    "callsite": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/callsite/-/callsite-1.0.0.tgz",
-      "integrity": "sha1-KAOY5dZkvXQDi28JBRU+borxvCA=",
-      "dev": true
-    },
     "camelcase": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-2.1.1.tgz",
@@ -656,9 +635,9 @@
       "dev": true
     },
     "component-emitter": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-      "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
+      "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg==",
       "dev": true
     },
     "component-inherit": {
@@ -699,7 +678,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
@@ -1009,45 +988,57 @@
       "dev": true
     },
     "engine.io": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.2.0.tgz",
-      "integrity": "sha512-mRbgmAtQ4GAlKwuPnnAvXXwdPhEx+jkc0OBCLrXuD/CRvwNK3AxRSnqK4FSqmAMRRHryVJP8TopOvmEaA64fKw==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.5.0.tgz",
+      "integrity": "sha512-21HlvPUKaitDGE4GXNtQ7PLP0Sz4aWLddMPw2VTyFz1FVZqu/kZsJUO8WNpKuE/OCL7nkfRaOui2ZCJloGznGA==",
       "dev": true,
       "requires": {
         "accepts": "~1.3.4",
-        "base64id": "1.0.0",
-        "cookie": "0.3.1",
-        "debug": "~3.1.0",
-        "engine.io-parser": "~2.1.0",
-        "ws": "~3.3.1"
+        "base64id": "2.0.0",
+        "cookie": "~0.4.1",
+        "debug": "~4.1.0",
+        "engine.io-parser": "~2.2.0",
+        "ws": "~7.4.2"
       },
       "dependencies": {
+        "cookie": {
+          "version": "0.4.1",
+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.1.tgz",
+          "integrity": "sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==",
+          "dev": true
+        },
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+          "dev": true
         }
       }
     },
     "engine.io-client": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.2.1.tgz",
-      "integrity": "sha512-y5AbkytWeM4jQr7m/koQLc5AxpRKC1hEVUb/s1FUAWEJq5AzJJ4NLvzuKPuxtDi5Mq755WuDvZ6Iv2rXj4PTzw==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.5.0.tgz",
+      "integrity": "sha512-12wPRfMrugVw/DNyJk34GQ5vIVArEcVMXWugQGGuw2XxUSztFNmJggZmv8IZlLyEdnpO1QB9LkcjeWewO2vxtA==",
       "dev": true,
       "requires": {
-        "component-emitter": "1.2.1",
+        "component-emitter": "~1.3.0",
         "component-inherit": "0.0.3",
         "debug": "~3.1.0",
-        "engine.io-parser": "~2.1.1",
+        "engine.io-parser": "~2.2.0",
         "has-cors": "1.1.0",
         "indexof": "0.0.1",
-        "parseqs": "0.0.5",
-        "parseuri": "0.0.5",
-        "ws": "~3.3.1",
+        "parseqs": "0.0.6",
+        "parseuri": "0.0.6",
+        "ws": "~7.4.2",
         "xmlhttprequest-ssl": "~1.5.4",
         "yeast": "0.1.2"
       },
@@ -1064,15 +1055,15 @@
       }
     },
     "engine.io-parser": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-2.1.2.tgz",
-      "integrity": "sha512-dInLFzr80RijZ1rGpx1+56/uFoH7/7InhH3kZt+Ms6hT8tNx3NGW/WNSA/f8As1WkOfkuyb3tnRyuXGxusclMw==",
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-2.2.1.tgz",
+      "integrity": "sha512-x+dN/fBH8Ro8TFwJ+rkB2AmuVw9Yu2mockR/p3W8f8YtExwFgDvBDi0GWyb4ZLkpahtDGZgtr3zLovanJghPqg==",
       "dev": true,
       "requires": {
         "after": "0.8.2",
         "arraybuffer.slice": "~0.0.7",
-        "base64-arraybuffer": "0.1.5",
-        "blob": "0.0.4",
+        "base64-arraybuffer": "0.1.4",
+        "blob": "0.0.5",
         "has-binary2": "~1.0.2"
       }
     },
@@ -1240,13 +1231,13 @@
       "dependencies": {
         "minimist": {
           "version": "0.0.8",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
           "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
           "dev": true
         },
         "mkdirp": {
           "version": "0.5.1",
-          "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
           "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
           "dev": true,
           "requires": {
@@ -1553,13 +1544,13 @@
       "dependencies": {
         "minimist": {
           "version": "0.0.8",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
           "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
           "dev": true
         },
         "mkdirp": {
           "version": "0.5.1",
-          "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
           "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
           "dev": true,
           "requires": {
@@ -2716,7 +2707,7 @@
         },
         "semver": {
           "version": "5.3.0",
-          "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
           "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
           "dev": true
         }
@@ -2788,12 +2779,6 @@
       "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=",
       "dev": true
     },
-    "object-component": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/object-component/-/object-component-0.0.3.tgz",
-      "integrity": "sha1-8MaapQ78lbhmwYb0AKM3acsvEpE=",
-      "dev": true
-    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
@@ -2917,22 +2902,16 @@
       }
     },
     "parseqs": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.5.tgz",
-      "integrity": "sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=",
-      "dev": true,
-      "requires": {
-        "better-assert": "~1.0.0"
-      }
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.6.tgz",
+      "integrity": "sha512-jeAGzMDbfSHHA091hr0r31eYfTig+29g3GKKE/PPbEQ65X0lmMwlEoqmhzu0iztID5uJpZsFlUPDP8ThPL7M8w==",
+      "dev": true
     },
     "parseuri": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
-      "integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
-      "dev": true,
-      "requires": {
-        "better-assert": "~1.0.0"
-      }
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.6.tgz",
+      "integrity": "sha512-AUjen8sAkGgao7UyCX6Ahv0gIK2fABKmYjvP4xmy5JaKvcbTRueIqIPHLAfq30xJddqSE033IOMUSOMCcK3Sow==",
+      "dev": true
     },
     "parseurl": {
       "version": "1.3.2",
@@ -3311,7 +3290,7 @@
           "dependencies": {
             "combined-stream": {
               "version": "1.0.6",
-              "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+              "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
               "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
               "dev": true,
               "requires": {
@@ -3669,55 +3648,58 @@
       "dev": true
     },
     "socket.io": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.1.1.tgz",
-      "integrity": "sha512-rORqq9c+7W0DAK3cleWNSyfv/qKXV99hV4tZe+gGLfBECw3XEhBy7x85F3wypA9688LKjtwO9pX9L33/xQI8yA==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.4.0.tgz",
+      "integrity": "sha512-9UPJ1UTvKayuQfVv2IQ3k7tCQC/fboDyIK62i99dAQIyHKaBsNdTpwHLgKJ6guRWxRtC9H+138UwpaGuQO9uWQ==",
       "dev": true,
       "requires": {
-        "debug": "~3.1.0",
-        "engine.io": "~3.2.0",
+        "debug": "~4.1.0",
+        "engine.io": "~3.5.0",
         "has-binary2": "~1.0.2",
         "socket.io-adapter": "~1.1.0",
-        "socket.io-client": "2.1.1",
-        "socket.io-parser": "~3.2.0"
+        "socket.io-client": "2.4.0",
+        "socket.io-parser": "~3.4.0"
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+          "dev": true
         }
       }
     },
     "socket.io-adapter": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz",
-      "integrity": "sha1-KoBeihTWNyEk3ZFZrUUC+MsH8Gs=",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-1.1.2.tgz",
+      "integrity": "sha512-WzZRUj1kUjrTIrUKpZLEzFZ1OLj5FwLlAFQs9kuZJzJi5DKdU7FsWc36SNmA8iDOtwBQyT8FkrriRM8vXLYz8g==",
       "dev": true
     },
     "socket.io-client": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.1.1.tgz",
-      "integrity": "sha512-jxnFyhAuFxYfjqIgduQlhzqTcOEQSn+OHKVfAxWaNWa7ecP7xSNk2Dx/3UEsDcY7NcFafxvNvKPmmO7HTwTxGQ==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.4.0.tgz",
+      "integrity": "sha512-M6xhnKQHuuZd4Ba9vltCLT9oa+YvTsP8j9NcEiLElfIg8KeYPyhWOes6x4t+LTAC8enQbE/995AdTem2uNyKKQ==",
       "dev": true,
       "requires": {
         "backo2": "1.0.2",
-        "base64-arraybuffer": "0.1.5",
         "component-bind": "1.0.0",
-        "component-emitter": "1.2.1",
+        "component-emitter": "~1.3.0",
         "debug": "~3.1.0",
-        "engine.io-client": "~3.2.0",
+        "engine.io-client": "~3.5.0",
         "has-binary2": "~1.0.2",
-        "has-cors": "1.1.0",
         "indexof": "0.0.1",
-        "object-component": "0.0.3",
-        "parseqs": "0.0.5",
-        "parseuri": "0.0.5",
-        "socket.io-parser": "~3.2.0",
+        "parseqs": "0.0.6",
+        "parseuri": "0.0.6",
+        "socket.io-parser": "~3.3.0",
         "to-array": "0.1.4"
       },
       "dependencies": {
@@ -3729,27 +3711,50 @@
           "requires": {
             "ms": "2.0.0"
           }
+        },
+        "isarray": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
+          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=",
+          "dev": true
+        },
+        "socket.io-parser": {
+          "version": "3.3.2",
+          "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.2.tgz",
+          "integrity": "sha512-FJvDBuOALxdCI9qwRrO/Rfp9yfndRtc1jSgVgV8FDraihmSP/MLGD5PEuJrNfjALvcQ+vMDM/33AWOYP/JSjDg==",
+          "dev": true,
+          "requires": {
+            "component-emitter": "~1.3.0",
+            "debug": "~3.1.0",
+            "isarray": "2.0.1"
+          }
         }
       }
     },
     "socket.io-parser": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.2.0.tgz",
-      "integrity": "sha512-FYiBx7rc/KORMJlgsXysflWx/RIvtqZbyGLlHZvjfmPTPeuD/I8MaW7cfFrj5tRltICJdgwflhfZ3NVVbVLFQA==",
+      "version": "3.4.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
+      "integrity": "sha512-11hMgzL+WCLWf1uFtHSNvliI++tcRUWdoeYuwIl+Axvwy9z2gQM+7nJyN3STj1tLj5JyIUH8/gpDGxzAlDdi0A==",
       "dev": true,
       "requires": {
         "component-emitter": "1.2.1",
-        "debug": "~3.1.0",
+        "debug": "~4.1.0",
         "isarray": "2.0.1"
       },
       "dependencies": {
+        "component-emitter": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
+          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
+          "dev": true
+        },
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
         },
         "isarray": {
@@ -3757,6 +3762,12 @@
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
           "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=",
           "dev": true
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+          "dev": true
         }
       }
     },
@@ -4117,12 +4128,6 @@
         }
       }
     },
-    "ultron": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
-      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==",
-      "dev": true
-    },
     "underscore.string": {
       "version": "3.3.5",
       "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.5.tgz",
@@ -4265,7 +4270,7 @@
       "dependencies": {
         "async": {
           "version": "1.0.0",
-          "resolved": "http://registry.npmjs.org/async/-/async-1.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/async/-/async-1.0.0.tgz",
           "integrity": "sha1-+PwEyjoTeErenhZBr5hXjPvWR6k=",
           "dev": true,
           "optional": true
@@ -4296,15 +4301,10 @@
       "dev": true
     },
     "ws": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
-      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
-      "dev": true,
-      "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
-      }
+      "version": "7.4.2",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.2.tgz",
+      "integrity": "sha512-T4tewALS3+qsrpGI/8dqNMLIVdq/g/85U98HPMa6F0m6xTbvhXU6RCQLqPH3+SlomNV/LdY6RXEbBpMH6EOJnA==",
+      "dev": true
     },
     "xmlhttprequest-ssl": {
       "version": "1.5.5",