* 2.7:
Minor hot fix
[PROCESS] make sure /dev/tty is readable
[PhpUnitBridge] Allow PHP 5.3.3 to use with Symfony 2.3
[2.3] require-dev PHPUnit bridge
[FrameworkBundle] Fixed Shell logo
[2.3] Update CONTRIBUTING.md
[2.3][Process] Fixed PhpProcess::getCommandLine() result
[Debug] Deprecations exception for Symfony internals
[Console] explicit assertion for ArgvInput::getFirstArgument() with no arguments
[PropertyAccess] unify and fix doc
Enforce UTF-8 charset for core controllers
Fix the toolbar JS for IE
Conflicts:
.travis.yml
src/Symfony/Bridge/PhpUnit/composer.json
a01fd1b673