BETA: Updated Angle & Heading methods in `Util` to use `ILocational` instead of `L2Object`.
	* Added a new method `L2Object.calculateDirectionTo(ILocational)` read javadocs for more info.

Patch by: FBIagent

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6320 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad