Updated INSTALL doc, again.
Updated INSTALL doc, again.

mpalourdio/DoctrineModule,malukenho/DoctrineModule,Bilge/DoctrineModule,inbaz/DoctrineModule,vasildakov/DoctrineModule,marek1989/DoctrineModule,alirezarahmani/DoctrineModule,doctrine/DoctrineModule,gencer/DoctrineModule,UFOMelkor/DoctrineModule,Bilge/DoctrineModule,malukenho/DoctrineModule,UFOMelkor/DoctrineModule,netiul/DoctrineModule