DB/SAI: The book of the Raven

By untaught, closes #11570
Core/Gossip: Add security to C++ scripted gossip options by checking guid of the object that the player is interecting with. Idea by @LilleCarl

Closes #11567
DB/SAI: No Rest For The Wicked

By MitchesD, closes #11709
Merge pull request #2 from TrinityCore/master

pull