[Config] added ability to set info message and example to node definition
[Config] added ability to set info message and example to node definition

hacfi/DoctrineBundle,javiereguiluz/DoctrineBundle,hason/DoctrineBundle,nicolas-grekas/DoctrineBundle,fabpot/DoctrineBundle,chrisguitarguy/DoctrineBundle,OskarStark/DoctrineBundle,skafandri/DoctrineBundle,doctrine/DoctrineBundle,OskarStark/DoctrineBundle,gencer/DoctrineBundle,fabpot/DoctrineBundle,mikeSimonson/DoctrineBundle,nicolas-grekas/DoctrineBundle,Soullivaneuh/DoctrineBundle,stof/DoctrineBundle,mikeSimonson/DoctrineBundle,fervo/DoctrineBundle,hason/DoctrineBundle,skafandri/DoctrineBundle,chrisguitarguy/DoctrineBundle,dunglas/DoctrineBundle,fervo/DoctrineBundle,gencer/DoctrineBundle,javiereguiluz/DoctrineBundle,hacfi/DoctrineBundle,lafourchette/DoctrineBundle,Soullivaneuh/DoctrineBundle