* minor chages in debugging
+ Introduce Skill::GetLevel and Skill::SetLevel methods. Use them everywhere instead of
GetAttribute(attrSkillLevel). It is a better design to use methods to encapsulate
implementation-specific code (Most of skill usage code does not care that skill level is
written into entity_attributes table, and is stored as a EvilNumber)
This should be done for other skill methods, and for everything in this project actually, to
reduce boilerplate code and avoid usage errors.
+ Implemented SkillMgrBound::Handle_CharStartTrainingSkillByTypeID method (called
when user presses "apply" button in skillqueue window)
TODO: rework skill queue so it can be paused (now when user presses "pause" button,
skillqueue is completely destroyed)
* changed log messages for saving methods
* Load character attributes *before* skill calculation