Merge pull request #28 from Learnosity/Learnosity/feature/php72-support

Add support for PHP 7.2

.gitignore

@@ -1,7 +1,6 @@
 .idea
 .sonar
 vendor
-composer.lock
 reports
 .DS_Store
 _vault

composer.json

@@ -17,21 +17,22 @@
         }
     },
     "require": {
-        "php": ">=5.5",
-        "symfony/config": "v2.6.8",
-        "symfony/finder": "v2.7.0",
-        "symfony/yaml": "v2.6.8",
-        "twig/twig": "1.18.2",
-        "twig/extensions": "1.2.0",
-        "symfony/dependency-injection": "v2.6.8",
-        "jms/aop-bundle": "1.0.1",
-        "jms/di-extra-bundle": "1.5.0",
-        "qtism/qtism": "7.0",
-        "symfony/console": "2.*",
+        "php": ">=5.6",
+        "symfony/config": "^3.4",
+        "symfony/console": "^3.4",
+        "symfony/dependency-injection": "^3.4",
+        "symfony/finder": "^3.4",
+        "symfony/framework-bundle": "^3.4",
+        "symfony/yaml": "^3.4",
+        "twig/twig": "^1.34",
+        "twig/extensions": "^1.5",
+        "jms/aop-bundle": "^1.0",
+        "jms/di-extra-bundle": "^1.7",
+        "qtism/qtism": "^10.0",
         "learnosity/learnosity-sdk-php": "^0.7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.8.4"
+        "phpunit/phpunit": "^4.8"
     },
     "bin": [
         "bin/mo"