diff --git a/Section15/package-lock.json b/Section15/package-lock.json
index e120abd..caae24f 100644
--- a/Section15/package-lock.json
+++ b/Section15/package-lock.json
@@ -4141,9 +4141,9 @@
       }
     },
     "npm": {
-      "version": "6.13.1",
-      "resolved": "https://registry.npmjs.org/npm/-/npm-6.13.1.tgz",
-      "integrity": "sha512-2awiDZ9JuV/UoF4oXGhekCURC2X+eLLRz9/e58AGrPDlpzyn7e4oCaZmkzyEaisxM7jSoFKNnZhzB4xbmbM0Yw==",
+      "version": "6.14.6",
+      "resolved": "https://registry.npmjs.org/npm/-/npm-6.14.6.tgz",
+      "integrity": "sha512-axnz6iHFK6WPE0js/+mRp+4IOwpHn5tJEw5KB6FiCU764zmffrhsYHbSHi2kKqNkRBt53XasXjngZfBD3FQzrQ==",
       "requires": {
         "JSONStream": "^1.3.5",
         "abbrev": "~1.1.1",
@@ -4151,12 +4151,12 @@
         "ansistyles": "~0.1.3",
         "aproba": "^2.0.0",
         "archy": "~1.0.0",
-        "bin-links": "^1.1.3",
+        "bin-links": "^1.1.7",
         "bluebird": "^3.5.5",
         "byte-size": "^5.0.1",
         "cacache": "^12.0.3",
         "call-limit": "^1.1.1",
-        "chownr": "^1.1.3",
+        "chownr": "^1.1.4",
         "ci-info": "^2.0.0",
         "cli-columns": "^3.1.2",
         "cli-table3": "^0.5.1",
@@ -4172,11 +4172,11 @@
         "find-npm-prefix": "^1.0.2",
         "fs-vacuum": "~1.2.10",
         "fs-write-stream-atomic": "~1.0.10",
-        "gentle-fs": "^2.2.1",
-        "glob": "^7.1.4",
-        "graceful-fs": "^4.2.3",
+        "gentle-fs": "^2.3.0",
+        "glob": "^7.1.6",
+        "graceful-fs": "^4.2.4",
         "has-unicode": "~2.0.1",
-        "hosted-git-info": "^2.8.5",
+        "hosted-git-info": "^2.8.8",
         "iferr": "^1.0.2",
         "imurmurhash": "*",
         "infer-owner": "^1.0.4",
@@ -4194,7 +4194,7 @@
         "libnpmorg": "^1.0.1",
         "libnpmsearch": "^2.0.2",
         "libnpmteam": "^1.0.2",
-        "libnpx": "^10.2.0",
+        "libnpx": "^10.2.2",
         "lock-verify": "^2.1.0",
         "lockfile": "^1.0.4",
         "lodash._baseindexof": "*",
@@ -4211,26 +4211,26 @@
         "lru-cache": "^5.1.1",
         "meant": "~1.0.1",
         "mississippi": "^3.0.0",
-        "mkdirp": "~0.5.1",
+        "mkdirp": "^0.5.5",
         "move-concurrently": "^1.0.1",
-        "node-gyp": "^5.0.5",
-        "nopt": "~4.0.1",
+        "node-gyp": "^5.1.0",
+        "nopt": "^4.0.3",
         "normalize-package-data": "^2.5.0",
         "npm-audit-report": "^1.3.2",
         "npm-cache-filename": "~1.0.2",
         "npm-install-checks": "^3.0.2",
         "npm-lifecycle": "^3.1.4",
         "npm-package-arg": "^6.1.1",
-        "npm-packlist": "^1.4.6",
+        "npm-packlist": "^1.4.8",
         "npm-pick-manifest": "^3.0.2",
-        "npm-profile": "^4.0.2",
-        "npm-registry-fetch": "^4.0.2",
+        "npm-profile": "^4.0.4",
+        "npm-registry-fetch": "^4.0.5",
         "npm-user-validate": "~1.0.0",
         "npmlog": "~4.1.2",
         "once": "~1.4.0",
         "opener": "^1.5.1",
         "osenv": "^0.1.5",
-        "pacote": "^9.5.9",
+        "pacote": "^9.5.12",
         "path-is-inside": "~1.0.2",
         "promise-inflight": "~1.0.1",
         "qrcode-terminal": "^0.12.0",
@@ -4239,13 +4239,13 @@
         "read": "~1.0.7",
         "read-cmd-shim": "^1.0.5",
         "read-installed": "~4.0.3",
-        "read-package-json": "^2.1.0",
+        "read-package-json": "^2.1.1",
         "read-package-tree": "^5.3.1",
-        "readable-stream": "^3.4.0",
+        "readable-stream": "^3.6.0",
         "readdir-scoped-modules": "^1.1.0",
         "request": "^2.88.0",
         "retry": "^0.12.0",
-        "rimraf": "^2.6.3",
+        "rimraf": "^2.7.1",
         "safe-buffer": "^5.1.2",
         "semver": "^5.7.1",
         "sha": "^3.0.0",
@@ -4410,13 +4410,14 @@
           }
         },
         "bin-links": {
-          "version": "1.1.3",
+          "version": "1.1.7",
           "bundled": true,
           "requires": {
             "bluebird": "^3.5.3",
             "cmd-shim": "^3.0.0",
-            "gentle-fs": "^2.0.1",
+            "gentle-fs": "^2.3.0",
             "graceful-fs": "^4.1.15",
+            "npm-normalize-package-bin": "^1.0.0",
             "write-file-atomic": "^2.3.0"
           }
         },
@@ -4508,7 +4509,7 @@
           }
         },
         "chownr": {
-          "version": "1.1.3",
+          "version": "1.1.4",
           "bundled": true
         },
         "ci-info": {
@@ -4773,7 +4774,7 @@
           "bundled": true
         },
         "deep-extend": {
-          "version": "0.5.1",
+          "version": "0.6.0",
           "bundled": true
         },
         "defaults": {
@@ -4889,7 +4890,7 @@
           }
         },
         "env-paths": {
-          "version": "1.0.0",
+          "version": "2.2.0",
           "bundled": true
         },
         "err-code": {
@@ -5165,11 +5166,12 @@
           "bundled": true
         },
         "gentle-fs": {
-          "version": "2.2.1",
+          "version": "2.3.0",
           "bundled": true,
           "requires": {
             "aproba": "^1.1.2",
             "chownr": "^1.1.2",
+            "cmd-shim": "^3.0.3",
             "fs-vacuum": "^1.2.10",
             "graceful-fs": "^4.1.11",
             "iferr": "^0.1.5",
@@ -5191,7 +5193,7 @@
           }
         },
         "get-caller-file": {
-          "version": "1.0.2",
+          "version": "1.0.3",
           "bundled": true
         },
         "get-stream": {
@@ -5209,7 +5211,7 @@
           }
         },
         "glob": {
-          "version": "7.1.4",
+          "version": "7.1.6",
           "bundled": true,
           "requires": {
             "fs.realpath": "^1.0.0",
@@ -5251,7 +5253,7 @@
           }
         },
         "graceful-fs": {
-          "version": "4.2.3",
+          "version": "4.2.4",
           "bundled": true
         },
         "har-schema": {
@@ -5286,7 +5288,7 @@
           "bundled": true
         },
         "hosted-git-info": {
-          "version": "2.8.5",
+          "version": "2.8.8",
           "bundled": true
         },
         "http-cache-semantics": {
@@ -5386,7 +5388,7 @@
           }
         },
         "invert-kv": {
-          "version": "1.0.0",
+          "version": "2.0.0",
           "bundled": true
         },
         "ip": {
@@ -5402,10 +5404,10 @@
           "bundled": true
         },
         "is-ci": {
-          "version": "1.1.0",
+          "version": "1.2.1",
           "bundled": true,
           "requires": {
-            "ci-info": "^1.0.0"
+            "ci-info": "^1.5.0"
           },
           "dependencies": {
             "ci-info": {
@@ -5467,7 +5469,7 @@
           }
         },
         "is-retry-allowed": {
-          "version": "1.1.0",
+          "version": "1.2.0",
           "bundled": true
         },
         "is-stream": {
@@ -5544,10 +5546,10 @@
           "bundled": true
         },
         "lcid": {
-          "version": "1.0.0",
+          "version": "2.0.0",
           "bundled": true,
           "requires": {
-            "invert-kv": "^1.0.0"
+            "invert-kv": "^2.0.0"
           }
         },
         "libcipm": {
@@ -5706,7 +5708,7 @@
           }
         },
         "libnpx": {
-          "version": "10.2.0",
+          "version": "10.2.2",
           "bundled": true,
           "requires": {
             "dotenv": "^5.0.1",
@@ -5836,15 +5838,30 @@
             "ssri": "^6.0.0"
           }
         },
+        "map-age-cleaner": {
+          "version": "0.1.3",
+          "bundled": true,
+          "requires": {
+            "p-defer": "^1.0.0"
+          }
+        },
         "meant": {
           "version": "1.0.1",
           "bundled": true
         },
         "mem": {
-          "version": "1.1.0",
+          "version": "4.3.0",
           "bundled": true,
           "requires": {
-            "mimic-fn": "^1.0.0"
+            "map-age-cleaner": "^0.1.1",
+            "mimic-fn": "^2.0.0",
+            "p-is-promise": "^2.0.0"
+          },
+          "dependencies": {
+            "mimic-fn": {
+              "version": "2.1.0",
+              "bundled": true
+            }
           }
         },
         "mime-db": {
@@ -5858,10 +5875,6 @@
             "mime-db": "~1.35.0"
           }
         },
-        "mimic-fn": {
-          "version": "1.2.0",
-          "bundled": true
-        },
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
@@ -5869,10 +5882,6 @@
             "brace-expansion": "^1.1.7"
           }
         },
-        "minimist": {
-          "version": "0.0.8",
-          "bundled": true
-        },
         "minizlib": {
           "version": "1.3.3",
           "bundled": true,
@@ -5907,10 +5916,16 @@
           }
         },
         "mkdirp": {
-          "version": "0.5.1",
+          "version": "0.5.5",
           "bundled": true,
           "requires": {
-            "minimist": "0.0.8"
+            "minimist": "^1.2.5"
+          },
+          "dependencies": {
+            "minimist": {
+              "version": "1.2.5",
+              "bundled": true
+            }
           }
         },
         "move-concurrently": {
@@ -5939,6 +5954,10 @@
           "version": "0.0.7",
           "bundled": true
         },
+        "nice-try": {
+          "version": "1.0.5",
+          "bundled": true
+        },
         "node-fetch-npm": {
           "version": "2.0.2",
           "bundled": true,
@@ -5949,37 +5968,24 @@
           }
         },
         "node-gyp": {
-          "version": "5.0.5",
+          "version": "5.1.0",
           "bundled": true,
           "requires": {
-            "env-paths": "^1.0.0",
-            "glob": "^7.0.3",
-            "graceful-fs": "^4.1.2",
-            "mkdirp": "^0.5.0",
-            "nopt": "2 || 3",
-            "npmlog": "0 || 1 || 2 || 3 || 4",
-            "request": "^2.87.0",
-            "rimraf": "2",
-            "semver": "~5.3.0",
+            "env-paths": "^2.2.0",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.2.2",
+            "mkdirp": "^0.5.1",
+            "nopt": "^4.0.1",
+            "npmlog": "^4.1.2",
+            "request": "^2.88.0",
+            "rimraf": "^2.6.3",
+            "semver": "^5.7.1",
             "tar": "^4.4.12",
-            "which": "1"
-          },
-          "dependencies": {
-            "nopt": {
-              "version": "3.0.6",
-              "bundled": true,
-              "requires": {
-                "abbrev": "1"
-              }
-            },
-            "semver": {
-              "version": "5.3.0",
-              "bundled": true
-            }
+            "which": "^1.3.1"
           }
         },
         "nopt": {
-          "version": "4.0.1",
+          "version": "4.0.3",
           "bundled": true,
           "requires": {
             "abbrev": "1",
@@ -6014,8 +6020,11 @@
           }
         },
         "npm-bundled": {
-          "version": "1.0.6",
-          "bundled": true
+          "version": "1.1.1",
+          "bundled": true,
+          "requires": {
+            "npm-normalize-package-bin": "^1.0.1"
+          }
         },
         "npm-cache-filename": {
           "version": "1.0.2",
@@ -6046,6 +6055,10 @@
           "version": "1.2.1",
           "bundled": true
         },
+        "npm-normalize-package-bin": {
+          "version": "1.0.1",
+          "bundled": true
+        },
         "npm-package-arg": {
           "version": "6.1.1",
           "bundled": true,
@@ -6057,11 +6070,12 @@
           }
         },
         "npm-packlist": {
-          "version": "1.4.6",
+          "version": "1.4.8",
           "bundled": true,
           "requires": {
             "ignore-walk": "^3.0.1",
-            "npm-bundled": "^1.0.1"
+            "npm-bundled": "^1.0.1",
+            "npm-normalize-package-bin": "^1.0.1"
           }
         },
         "npm-pick-manifest": {
@@ -6074,7 +6088,7 @@
           }
         },
         "npm-profile": {
-          "version": "4.0.2",
+          "version": "4.0.4",
           "bundled": true,
           "requires": {
             "aproba": "^1.1.2 || 2",
@@ -6083,7 +6097,7 @@
           }
         },
         "npm-registry-fetch": {
-          "version": "4.0.2",
+          "version": "4.0.5",
           "bundled": true,
           "requires": {
             "JSONStream": "^1.3.4",
@@ -6096,7 +6110,7 @@
           },
           "dependencies": {
             "safe-buffer": {
-              "version": "5.2.0",
+              "version": "5.2.1",
               "bundled": true
             }
           }
@@ -6162,12 +6176,38 @@
           "bundled": true
         },
         "os-locale": {
-          "version": "2.1.0",
+          "version": "3.1.0",
           "bundled": true,
           "requires": {
-            "execa": "^0.7.0",
-            "lcid": "^1.0.0",
-            "mem": "^1.1.0"
+            "execa": "^1.0.0",
+            "lcid": "^2.0.0",
+            "mem": "^4.0.0"
+          },
+          "dependencies": {
+            "cross-spawn": {
+              "version": "6.0.5",
+              "bundled": true,
+              "requires": {
+                "nice-try": "^1.0.4",
+                "path-key": "^2.0.1",
+                "semver": "^5.5.0",
+                "shebang-command": "^1.2.0",
+                "which": "^1.2.9"
+              }
+            },
+            "execa": {
+              "version": "1.0.0",
+              "bundled": true,
+              "requires": {
+                "cross-spawn": "^6.0.0",
+                "get-stream": "^4.0.0",
+                "is-stream": "^1.1.0",
+                "npm-run-path": "^2.0.0",
+                "p-finally": "^1.0.0",
+                "signal-exit": "^3.0.0",
+                "strip-eof": "^1.0.0"
+              }
+            }
           }
         },
         "os-tmpdir": {
@@ -6182,10 +6222,18 @@
             "os-tmpdir": "^1.0.0"
           }
         },
+        "p-defer": {
+          "version": "1.0.0",
+          "bundled": true
+        },
         "p-finally": {
           "version": "1.0.0",
           "bundled": true
         },
+        "p-is-promise": {
+          "version": "2.1.0",
+          "bundled": true
+        },
         "p-limit": {
           "version": "1.2.0",
           "bundled": true,
@@ -6215,7 +6263,7 @@
           }
         },
         "pacote": {
-          "version": "9.5.9",
+          "version": "9.5.12",
           "bundled": true,
           "requires": {
             "bluebird": "^3.5.3",
@@ -6232,6 +6280,7 @@
             "mississippi": "^3.0.0",
             "mkdirp": "^0.5.1",
             "normalize-package-data": "^2.4.0",
+            "npm-normalize-package-bin": "^1.0.0",
             "npm-package-arg": "^6.1.0",
             "npm-packlist": "^1.1.12",
             "npm-pick-manifest": "^3.0.0",
@@ -6427,17 +6476,17 @@
           "bundled": true
         },
         "rc": {
-          "version": "1.2.7",
+          "version": "1.2.8",
           "bundled": true,
           "requires": {
-            "deep-extend": "^0.5.1",
+            "deep-extend": "^0.6.0",
             "ini": "~1.3.0",
             "minimist": "^1.2.0",
             "strip-json-comments": "~2.0.1"
           },
           "dependencies": {
             "minimist": {
-              "version": "1.2.0",
+              "version": "1.2.5",
               "bundled": true
             }
           }
@@ -6470,14 +6519,14 @@
           }
         },
         "read-package-json": {
-          "version": "2.1.0",
+          "version": "2.1.1",
           "bundled": true,
           "requires": {
             "glob": "^7.1.1",
             "graceful-fs": "^4.1.2",
             "json-parse-better-errors": "^1.0.1",
             "normalize-package-data": "^2.0.0",
-            "slash": "^1.0.0"
+            "npm-normalize-package-bin": "^1.0.0"
           }
         },
         "read-package-tree": {
@@ -6490,7 +6539,7 @@
           }
         },
         "readable-stream": {
-          "version": "3.4.0",
+          "version": "3.6.0",
           "bundled": true,
           "requires": {
             "inherits": "^2.0.3",
@@ -6509,7 +6558,7 @@
           }
         },
         "registry-auth-token": {
-          "version": "3.3.2",
+          "version": "3.4.0",
           "bundled": true,
           "requires": {
             "rc": "^1.1.6",
@@ -6566,7 +6615,7 @@
           "bundled": true
         },
         "rimraf": {
-          "version": "2.6.3",
+          "version": "2.7.1",
           "bundled": true,
           "requires": {
             "glob": "^7.1.3"
@@ -6630,10 +6679,6 @@
           "version": "3.0.2",
           "bundled": true
         },
-        "slash": {
-          "version": "1.0.0",
-          "bundled": true
-        },
         "slide": {
           "version": "1.1.6",
           "bundled": true
@@ -6728,7 +6773,7 @@
           }
         },
         "spdx-license-ids": {
-          "version": "3.0.3",
+          "version": "3.0.5",
           "bundled": true
         },
         "split-on-first": {
@@ -6829,10 +6874,16 @@
           }
         },
         "string_decoder": {
-          "version": "1.2.0",
+          "version": "1.3.0",
           "bundled": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "~5.2.0"
+          },
+          "dependencies": {
+            "safe-buffer": {
+              "version": "5.2.0",
+              "bundled": true
+            }
           }
         },
         "stringify-package": {
@@ -7101,7 +7152,7 @@
           }
         },
         "widest-line": {
-          "version": "2.0.0",
+          "version": "2.0.1",
           "bundled": true,
           "requires": {
             "string-width": "^2.1.1"
@@ -7163,14 +7214,14 @@
           "bundled": true
         },
         "yargs": {
-          "version": "11.0.0",
+          "version": "11.1.1",
           "bundled": true,
           "requires": {
             "cliui": "^4.0.0",
             "decamelize": "^1.1.1",
             "find-up": "^2.1.0",
             "get-caller-file": "^1.0.1",
-            "os-locale": "^2.0.0",
+            "os-locale": "^3.1.0",
             "require-directory": "^2.1.1",
             "require-main-filename": "^1.0.1",
             "set-blocking": "^2.0.0",
diff --git a/Section15/package.json b/Section15/package.json
index be9e3c8..afb2b90 100644
--- a/Section15/package.json
+++ b/Section15/package.json
@@ -10,7 +10,7 @@
   "dependencies": {
     "bootstrap": "^3.3.7",
     "install": "^0.13.0",
-    "npm": "^6.13.1",
+    "npm": "^6.14.6",
     "vue": "^2.0.1",
     "vue-resource": "^1.5.1"
   },