DB/Misc: Fix achievement Flirt With Disaster.
Core/AI: Removed Scripted_NoMovementAI which has become obsolete. Use ScriptedAI::SetCombatMovement(false); to get the same functionality.
DB/Creature: Updated Unseen template
Core/RBAC: Allow custom security levels for commands. (Before this change any command with seclevel > 3 had the same permissions than player commands)

Note: This is still a workaround till command system is moved to RBAC
Typo fix
Merge branch 'master' into 4.3.4

Conflicts:
	src/server/scripts/Kalimdor/zone_durotar.cpp