Merge pull request #287 from KayenEQ/Development

Implemented support for using target rings from item clicks
Fix changelog. [skip ci]
Fix for GM Trainer crashing server (undefined behavior on enum cast)
Yellow faction messages.
Real fix for GM trainer crash..evidently the problem went deeper than an undefined condition...
Merge branch 'master' of https://github.com/EQEmu/Server

Conflicts:
	changelog.txt
Removed type qualifier for SkillUseTypes enum
Added a simple check to prevent DoEnduranceUpkeep (1 sec persistent timer)
from constantly checking when client has no endurance drain effects.
This was running 24/7 for all classes.