Changes for Symfony v2.3
Working Symfony 2.3 version
FMElfinder not tagged for SF2.3 yet
Revert "FMElfinder not tagged for SF2.3 yet"

This reverts commit 8b1d1ff9659ed2977b68362da74f31c7f366de7c.
Schema to YAML format to overriding easier
Comment IP validation corrected
Fix #10