* 2.2:
corrected English grammar (s/does not exists/does not exist)
[Process] Add more precision to Process::stop timeout
[Process] Avoid zombie process in case of unit tests failure
[Process] Fix#8739
[Process] Add failing test for #8739
[Process] Fix CS
Fixed documentation grammar for AuthenticationManagerInterface::authenticate()
[Validator] fixed the wrong isAbstract() check against the class (fixed#8589)
[TwigBridge] Prevent code extension to display warning
Use strstr instead of strpos
Conflicts:
src/Symfony/Component/Finder/Shell/Command.php
src/Symfony/Component/Process/Process.php
The new ClassLoader does not differentiate namespaced classes and
PEAR-like classes like the UniversalClassLoader does as the PEAR
format is a subset of PSR-0.
The new loader registers fallbacks by adding a location for an empty
prefix, as done in Composer. This allows using namespaces map generated
by Composer without any special processing on them.
