Added a service for opening browser windows
Added a description to the browser service
Changed the location of some packet opcodes
Fixed Some Level Issues with NPC's

Min and Maxlevel not required if setLevel() is used
Fixed several AI bugs, added log system

- Fixes 0000031: Incap is not working correctly
- NPC AI now considers deathblow values correctly
- AI state transition further debugged
- Pet now follows owner after killing attacker
- Added debug log system
- Cleaned up system console from system.out messages
Merge remote-tracking branch 'origin/master' into NPCUpdate

Conflicts:
	src/main/NGECore.java
fix merge conflict
Adding debuglogs folder
Added gitignore for folder
Merge pull request #991 from CharonInferar/NPCUpdate

Fixed several AI bugs, added log system