Allow individual bridges, bundles and components to be used with 4.0

Author: dunglas

composer.json

@@ -18,42 +18,42 @@
     "require": {
         "php": ">=5.5.9",
         "ext-xml": "*",
-        "symfony/cache": "~3.3",
+        "symfony/cache": "~3.3|~4.0.0",
         "symfony/class-loader": "~3.2",
-        "symfony/dependency-injection": "~3.3-beta2",
-        "symfony/config": "~3.3",
-        "symfony/event-dispatcher": "~3.3",
-        "symfony/http-foundation": "~3.3",
-        "symfony/http-kernel": "~3.3",
+        "symfony/dependency-injection": "~3.3-beta2|~4.0.0",
+        "symfony/config": "~3.3|~4.0.0",
+        "symfony/event-dispatcher": "~3.3|~4.0.0",
+        "symfony/http-foundation": "~3.3|~4.0.0",
+        "symfony/http-kernel": "~3.3|~4.0.0",
         "symfony/polyfill-mbstring": "~1.0",
-        "symfony/filesystem": "~2.8|~3.0",
-        "symfony/finder": "~2.8|~3.0",
-        "symfony/routing": "~3.3",
-        "symfony/stopwatch": "~2.8|~3.0",
+        "symfony/filesystem": "~2.8|~3.0|~4.0.0",
+        "symfony/finder": "~2.8|~3.0|~4.0.0",
+        "symfony/routing": "~3.3|~4.0.0",
+        "symfony/stopwatch": "~2.8|~3.0|~4.0.0",
         "doctrine/cache": "~1.0"
     },
     "require-dev": {
         "fig/link-util": "^1.0",
-        "symfony/asset": "~3.3",
-        "symfony/browser-kit": "~2.8|~3.0",
-        "symfony/console": "~3.3",
-        "symfony/css-selector": "~2.8|~3.0",
-        "symfony/dom-crawler": "~2.8|~3.0",
+        "symfony/asset": "~3.3|~4.0.0",
+        "symfony/browser-kit": "~2.8|~3.0|~4.0.0",
+        "symfony/console": "~3.3|~4.0.0",
+        "symfony/css-selector": "~2.8|~3.0|~4.0.0",
+        "symfony/dom-crawler": "~2.8|~3.0|~4.0.0",
         "symfony/polyfill-intl-icu": "~1.0",
-        "symfony/security": "~2.8|~3.0",
-        "symfony/form": "~3.3",
-        "symfony/expression-language": "~2.8|~3.0",
-        "symfony/process": "~2.8|~3.0",
-        "symfony/security-core": "~3.2",
-        "symfony/security-csrf": "~2.8|~3.0",
-        "symfony/serializer": "~3.3",
-        "symfony/translation": "~3.2",
-        "symfony/templating": "~2.8|~3.0",
-        "symfony/validator": "~3.3",
-        "symfony/workflow": "~3.3",
-        "symfony/yaml": "~3.2",
-        "symfony/property-info": "~3.3",
-        "symfony/web-link": "~3.3",
+        "symfony/security": "~2.8|~3.0|~4.0.0",
+        "symfony/form": "~3.3|~4.0.0",
+        "symfony/expression-language": "~2.8|~3.0|~4.0.0",
+        "symfony/process": "~2.8|~3.0|~4.0.0",
+        "symfony/security-core": "~3.2|~4.0.0",
+        "symfony/security-csrf": "~2.8|~3.0|~4.0.0",
+        "symfony/serializer": "~3.3|~4.0.0",
+        "symfony/translation": "~3.2|~4.0.0",
+        "symfony/templating": "~2.8|~3.0|~4.0.0",
+        "symfony/validator": "~3.3|~4.0.0",
+        "symfony/workflow": "~3.3|~4.0.0",
+        "symfony/yaml": "~3.2|~4.0.0",
+        "symfony/property-info": "~3.3|~4.0.0",
+        "symfony/web-link": "~3.3|~4.0.0",
         "doctrine/annotations": "~1.0",
         "phpdocumentor/reflection-docblock": "^3.0",
         "twig/twig": "~1.26|~2.0",