lot of changes, see comment

- added dk battle rezz
- added jps.useBagItem(itemName) , use like jps.useTrinket(..), for pots/flask/landshark... (tested)
- moved all ground blicks to jps parse :) (works like a boss)
- frost mage update (maybe here is a little DPS update needed)
- arcane mage update 5.3 (should be nice, have to less gear to check DPS) (tested with 450 iLvl gear)
- added findTanksInRaid (return all Tank units, not just one like findMeATank) (used in my holy paladin rotation)
- holy paladin 5.3 & stop Casting support, maybe we should move this to a central file after testing more) (tested lfr)
- changed findMeATank & findMeAggroTank functions, the first returns valid tank, focus or player if no tank is group, findMeAggroTank returns tank with highest threat Situation
- jps.Fishing = false on default
- deleting grey junk worth less than 1 silver while opening fishing loot
- lot of bugfixes
- merged newest changes from htordeux