[2.7] Allow 3.0 requirements

Author: nicolas-grekas

composer.json

@@ -17,27 +17,27 @@
     ],
     "require": {
         "php": ">=5.3.3",
-        "symfony/event-dispatcher": "~2.5.9|~2.6,>=2.6.2",
-        "symfony/http-foundation": "~2.5,>=2.5.4",
-        "symfony/debug": "~2.6",
+        "symfony/event-dispatcher": "~2.5.9|~2.6,>=2.6.2|~3.0.0",
+        "symfony/http-foundation": "~2.5,>=2.5.4|~3.0.0",
+        "symfony/debug": "~2.6|~3.0.0",
         "psr/log": "~1.0"
     },
     "require-dev": {
-        "symfony/browser-kit": "~2.3",
-        "symfony/class-loader": "~2.1",
-        "symfony/config": "~2.0,>=2.0.5",
-        "symfony/console": "~2.3",
-        "symfony/css-selector": "~2.0,>=2.0.5",
-        "symfony/dependency-injection": "~2.2",
-        "symfony/dom-crawler": "~2.0,>=2.0.5",
-        "symfony/expression-language": "~2.4",
-        "symfony/finder": "~2.0,>=2.0.5",
-        "symfony/process": "~2.0,>=2.0.5",
-        "symfony/routing": "~2.2",
-        "symfony/stopwatch": "~2.3",
-        "symfony/templating": "~2.2",
-        "symfony/translation": "~2.0,>=2.0.5",
-        "symfony/var-dumper": "~2.6"
+        "symfony/browser-kit": "~2.3|~3.0.0",
+        "symfony/class-loader": "~2.1|~3.0.0",
+        "symfony/config": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/console": "~2.3|~3.0.0",
+        "symfony/css-selector": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/dependency-injection": "~2.2|~3.0.0",
+        "symfony/dom-crawler": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/expression-language": "~2.4|~3.0.0",
+        "symfony/finder": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/process": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/routing": "~2.2|~3.0.0",
+        "symfony/stopwatch": "~2.3|~3.0.0",
+        "symfony/templating": "~2.2|~3.0.0",
+        "symfony/translation": "~2.0,>=2.0.5|~3.0.0",
+        "symfony/var-dumper": "~2.6|~3.0.0"
     },
     "suggest": {
         "symfony/browser-kit": "",