* 2.3: (34 commits)
Fix#8205 : Deprecate file mode update when calling dumpFile
Fix#10437: Catch exceptions when reloading a no-cache request
Fix libxml_use_internal_errors and libxml_disable_entity_loader usage
removed ini check to make uploadedfile work on gae
Update OptionsResolver.php
fixed comment in forms.xml file
Clean KernelInterface docblocks
Cast the group name as a string
Fixed doc of InitAclCommand
[Form] Fix "Array was modified outside object" in ResizeFormListener.
Fix IBAN validator
[Process] Remove unreachable code + avoid skipping tests in sigchild environment
Fixed bug that incorrectly causes the "required" attribute to be omitted from select even though it contains the "multiple" attribute
Added travis_retry to .travis.yml
[Process] fix some typos and refactor some code
[Process] Fix unit tests in sigchild disabled environment
[Process] Trow exceptions in case a Process method is supposed to be called after termination
fixed typo
[Process] fixed fatal errors in getOutput and getErrorOutput when process was not started
[Process] Fix escaping on Windows
...
Conflicts:
src/Symfony/Component/DomCrawler/Crawler.php
src/Symfony/Component/Filesystem/Filesystem.php
src/Symfony/Component/Process/Process.php
As Composer is now widely used in the PHP world, having to run composer
install before running the test suite is expected. This also has the
nice benefit of removing a bunch of code, making things easier to
maintain (there is only one place to declare a dev dependency), and
probably more.