PC WORLD EDITOR CHANGES
- Increased max map file size from 4 MB to 8 MB.
- Added the ability to store hashtable handles in a hashtable.
- Added GetSpellTargetX and GetSpellTargetY natives.
- Added a new base handle type "Agent" of which many types now extend from.
- Added a SaveAgentHandle native which can be used for saving most handle types.
- Added a JASS optimization dealing with global variable change events.

FIXES
- Fixed a few false positives caused by the "return bug" fix.
- Fixed a crash related to hashtable reference counting.
- "Shadowing" global variables with local variables no longer is possible.
- Fixed a type conversion dealing with operators (i.e. adding a handle with an integer).