Gem removal and insertion, decoration layers, level-up notification and skill tree expansion

Game update to version: dev - 1.9.9

Here is a quick overview of the last changes
  • Shop trade window is now opened also when talking with the NPC, and you get to some conversation point
  • Size problem of equipped items was fixed
  • When the player levels up, a notification box is displayed on the screen. Also, the level is updated for all players that are in the map
  • When an item is dropped from inv, the tooltip window will no longer be displayed
  • Skeleton attack animation was changed
  • Gem can now be removed from an item
  • Skill tree was expanded
  • Also, the entire inventory drag and drop functionality was rewritten manually, and library (which caused random bugs) is no longer used. We will see how this will work out...
Bug fixes:
  • Fix serious bug with AOE, which was forgotten code mistake from the last changes
  • Fix bug where selling an item with sockets could have resulted in a server crash