* 4.0:
use brace-style regex delimiters
Fixed typo RecursiveIterator -> RecursiveIteratorIterator
[Cache] fix logic for fetching tag versions on TagAwareAdapter
[FrameworkBundle] Remove dead code
[FrameworkBundle] Use the correct service id for CachePoolPruneCommand in its compiler pass
Hide short exception trace by default
[Doctrine Bridge] fix priority for doctrine event listeners
[Validator] make phpdoc of ObjectInitializerInterface interface more accurate
[Validator] fixes phpdoc reference to an interface that was removed in Symfony 3.0
* 3.4:
use brace-style regex delimiters
Fixed typo RecursiveIterator -> RecursiveIteratorIterator
[Cache] fix logic for fetching tag versions on TagAwareAdapter
[FrameworkBundle] Use the correct service id for CachePoolPruneCommand in its compiler pass
Hide short exception trace by default
[Doctrine Bridge] fix priority for doctrine event listeners
[Validator] make phpdoc of ObjectInitializerInterface interface more accurate
[Validator] fixes phpdoc reference to an interface that was removed in Symfony 3.0
