Added script disposing

Scripts are now disposed on reload. A new overridable method (CleanUp)
is called from Dispose.
Added CreatureDrops class
Improved Gold Drops

* Added gold drop rate conf option, prev option was renamed
gold_drop_chance. Rate is now a multiplicator.
* Fixed gold dropping in only one stack
* Added dropping in pattern if 21k gold drop
Added lucky finishes
Fixed title bonuses

* Fixed option bonuses not being removed
* Fixed LifeInjured not being updated
Fixed speed of various very fast pets

* Added RunSpeedFactor to races db
* Added RunSpeedFactor multiplicator in GetSpeed
Added dummy handler for AAEE
Added Composing skill
Fixed skill canceling

Gotta remember to properly set ActiveSkill everywhere
Added Playing Instrument skill
Added skill callback functionality
Saving cosmetics of character on save.
Merge pull request #2 from epicmiro/upstream

Saving cosmetics of character on save.
Added stamina usage while Playing Instrument
Fixed stamina regen

Hunger multiplicator is only supposed to affect positive regen I guess.
Added dummy handler for AAEE
Fixed title stat bonuses

Values weren't applied to the actual stat (eg. Life increases right away
when using a Life Max increasing title)
Added title min/max attack bonuses
Merge remote-tracking branch 'origin/master' into music
Added Song skill

Just to see how it works, we need knowledge about future skills as well.