[CS Fix] Consistent coding-style of concatenation operator usage
Filesystem::touch() not working with different owners (utime/atime issue)
Mitigate dependency upon ConfigCache
Merge branch '2.1' into 2.2

* 2.1:
  Removed trailing whitespace
  [Validator] added missing estonian translation of messages
  Filesystem::touch() not working with different owners (utime/atime issue)

Conflicts:
	src/Symfony/Component/Validator/Resources/translations/validators.et.xlf
Merge branch '2.2'

* 2.2:
  [Validator] added missing estonian translation of messages
  Removed trailing whitespace
  [Validator] added missing estonian translation of messages
  Filesystem::touch() not working with different owners (utime/atime issue)
Merge remote-tracking branch 'symfony/master' into develop

Conflicts:
	CHANGELOG.md
	src/main/php/ehough/filesystem/Filesystem.php
[Filesystem] Added a missing test case for Filesystem::dumpFile().
[Filesystem] Made sure Filesystem::dumpFile() overwrites an existing file.
Merge remote-tracking branch 'symfony/master' into develop

Conflicts:
	src/main/php/ehough/filesystem/Filesystem.php
[Filesystem] Fix tests on windows
Merge remote-tracking branch 'symfony/master' into develop
[Filesystem] copy() is not working when open_basedir is set

More details: https://bugs.php.net/bug.php?id=64634
Merge branch '2.1' into 2.2

* 2.1:
  remove validation related headers when needed
  use while loop for iterating
  [Filesystem] copy() is not working when open_basedir is set

Conflicts:
	src/Symfony/Component/HttpKernel/Profiler/FileProfilerStorage.php
Merge branch '2.2'

* 2.2:
  [Swiftmailer] bumped allowed versions
  remove validation related headers when needed
  use while loop for iterating
  [Filesystem] copy() is not working when open_basedir is set
Merge remote-tracking branch 'symfony/master' into develop

Conflicts:
	src/main/php/ehough/filesystem/Filesystem.php
[Filesystem] Fix regression introduced in 10dea948
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
Merge branch '2.2'

* 2.2:
  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/Process/Tests/AbstractProcessTest.php
Merge remote-tracking branch 'symfony/master' into develop

Conflicts:
	src/main/php/ehough/filesystem/Filesystem.php
updated version to 2.4