Merge pull request #3 from Gnarfoz/master

Make changing the dungeon difficulty actually work
Merge pull request #4 from Gnarfoz/master

CheckedFunc logic fix; convert down, not just up; anti ugly 5000
Merge pull request #5 from Gnarfoz/master

TOC bump & X-LoadOn fix
load on any LFG_CATEGORY
GetRaidDifficulty->GetRaidDifficultyID
use GetInstanceInfo over GetRaidDifficultyID because fuck it, also fix long-standing party leader detection bug
leave off difficulty when grouped but not in instance
stop calling loot functions when not grouped
clean up last
dammit
bail out when loot threshold is greater than 7, as happens when joining a LFG queue
map GetRaidDifficultyID/GetDungeonDifficultyID correctly
clean up a bit
more LFD/LFR zoning issues
streamline last