fixed Composer constraints

Author: fabpot

composer.json

@@ -22,12 +22,12 @@
         "symfony/dependency-injection": "~2.8",
         "symfony/config": "~2.8",
         "symfony/event-dispatcher": "~2.8|~3.0.0",
-        "symfony/finder": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/finder": "^2.0.5|~3.0.0",
         "symfony/http-foundation": "~2.7",
-        "symfony/http-kernel": "~2.8.16",
+        "symfony/http-kernel": "^2.8.16",
         "symfony/polyfill-mbstring": "~1.0",
         "symfony/filesystem": "~2.3|~3.0.0",
-        "symfony/routing": "~2.8.17",
+        "symfony/routing": "^2.8.17",
         "symfony/security-core": "~2.6.13|~2.7.9|~2.8|~3.0.0",
         "symfony/security-csrf": "~2.6|~3.0.0",
         "symfony/stopwatch": "~2.3|~3.0.0",
@@ -39,15 +39,15 @@
     "require-dev": {
         "symfony/browser-kit": "~2.4|~3.0.0",
         "symfony/console": "~2.8.8|~3.0.8",
-        "symfony/css-selector": "~2.0,>=2.0.5|~3.0.0",
-        "symfony/dom-crawler": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/css-selector": "^2.0.5|~3.0.0",
+        "symfony/dom-crawler": "^2.0.5|~3.0.0",
         "symfony/polyfill-intl-icu": "~1.0",
         "symfony/security": "~2.6|~3.0.0",
         "symfony/form": "^2.8.16",
         "symfony/expression-language": "~2.6|~3.0.0",
-        "symfony/process": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/process": "^2.0.5|~3.0.0",
         "symfony/validator": "~2.5|~3.0.0",
-        "symfony/yaml": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/yaml": "^2.0.5|~3.0.0",
         "symfony/property-info": "~2.8|~3.0.0",
         "phpdocumentor/reflection": "^1.0.7",
         "twig/twig": "~1.23|~2.0",