Merge pull request #39 from l0g0sys/master

Removed obsolete rounding of increased maximum ES.
Added Right Click description to Hotkey list
Fixes #25

* List box groups collapsed/expanded state preservation
* This is not done for Item tab atm, it is only updated when you load
new items anyway, and the code is realy messy.
+ Fixed some problems with how groups were made
+ Fixed crash related to Data\Assets folder missing
Merge branch 'master' of https://github.com/EmmittJ/PoESkillTreeSource
Fixed crash with item having gem support modifier for gem not in DB.