Merge branch '2.1' into 2.2

* 2.1:
  bumped Symfony version to 2.1.11-DEV
  updated VERSION for 2.1.10
  update CONTRIBUTORS for 2.1.10
  updated CHANGELOG for 2.1.10
  fixed CS
  [Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
  [Filesystem] Fix regression introduced in 10dea948

Conflicts:
	src/Symfony/Component/Form/Extension/Core/DataTransformer/DataTransformerChain.php
	src/Symfony/Component/HttpKernel/Kernel.php
	src/Symfony/Component/HttpKernel/Profiler/RedisProfilerStorage.php
	src/Symfony/Component/Routing/Tests/Loader/XmlFileLoaderTest.php

Filesystem.php

@@ -35,7 +35,7 @@ class Filesystem
      */
     public function copy($originFile, $targetFile, $override = false)
     {
-        if (!is_file($originFile)) {
+        if (stream_is_local($originFile) && !is_file($originFile)) {
             throw new IOException(sprintf('Failed to copy %s because file not exists', $originFile));
         }