feat (FastFishing): makes fishing fastest

When fishing, the fish always come quickly.
feat (GainHonor): killing a guard or an elite mob give honor
feat (NoGreyAggro) : no aggro from grey creatures
feat (RespawnSpeed) : allows to control the respawn speed of mobs
fix (Config) : adds default configuration entries.
fix (Config): reorganize configuration entries.
fix (Config) : add configuration entries for loot.
fix (NoGreyAggro) : changed formula.
Some minor fixes and new options for the .showarea and .hidearea commands:

 - Fixed Trinity::XP::GetGrayLevel function for level between 40 and 59.
 - Fixed Player::GetQuestDialogStatus so it no longer consider green quests as lowlevel ones.
 - The showarea/hidearea commands set entire zone as explored/unexplored (+ achievement) when no argument given.