Inconsistency & bugs fix.

* TributeAction should be UserAction
* Missing & typo of 'associated_action' field of Skills
* Mutant do not draw extra 4 cards when being sealed.
* Minoriko ui_meta bug fix.
THBRAID: ui: inputbox should change color
dummy_player.py hack
UserSettings.load tune.
fix typo
add new character: Kaguya
add kaguya illustration
rename skills and set source of MaxLifeChange
add source attribute to DropCards
MaxLifeChange now is not BaseDamage
change LaunchCardAction to new style class