hasFlash was deprecated in Symfony 2.1

hasFlash was deprecated in Symfony 2.1 and will be removed in 2.3
Renamed translation file
Merge remote-tracking branch 'origin/master' into 2.1
Merge pull request #26 from shaneog/fix-deprecated

hasFlash was deprecated in Symfony 2.1
Merge pull request #29 from mrzepinski/2.1

Polish Translation
Merge pull request #1 from michelsalib/master

Update