Use "anonymous" git access, fix case
Use "anonymous" git access, fix case

It can be confusing for users with no github account, or on servers
without SSH keys.
It also appears that GitHub usernames are case-sensitive so the old
address was not working anyway!

nicolasricci/SonataMediaBundle,OskarStark/SonataMediaBundle,hug963/SonataMediaBundle,jerome-fix/SonataMediaBundle,hug963/SonataMediaBundle,vyshkant/SonataMediaBundle,kyaroslav/SonataMediaBundle,vyshkant/SonataMediaBundle,rmzamora/SonataMediaBundle,Soullivaneuh/SonataMediaBundle,jerome-fix/SonataMediaBundle,phansys/SonataMediaBundle,peterkokot/SonataMediaBundle,hug963/SonataMediaBundle,kyaroslav/SonataMediaBundle,bgaleotti/SonataMediaBundle,nicolasricci/SonataMediaBundle,OskarStark/SonataMediaBundle,nicolasricci/SonataMediaBundle,vyshkant/SonataMediaBundle,hug963/SonataMediaBundle,Soullivaneuh/SonataMediaBundle,OskarStark/SonataMediaBundle,rmzamora/SonataMediaBundle,nicolasricci/SonataMediaBundle,vyshkant/SonataMediaBundle,Soullivaneuh/SonataMediaBundle,jerome-fix/SonataMediaBundle,jerome-fix/SonataMediaBundle,phansys/SonataMediaBundle,bgaleotti/SonataMediaBundle,rmzamora/SonataMediaBundle,vyshkant/SonataMediaBundle,sonata-project/SonataMediaBundle,nicolasricci/SonataMediaBundle,Soullivaneuh/SonataMediaBundle,Soullivaneuh/SonataMediaBundle,peterkokot/SonataMediaBundle,OskarStark/SonataMediaBundle,bgaleotti/SonataMediaBundle,hug963/SonataMediaBundle,peterkokot/SonataMediaBundle,bgaleotti/SonataMediaBundle