update selectItemAddress

[Drakansoul]

This restores the functionality of selecting items from the BDTH item menue. There does exist an issue where if a new item is selected from the plugin menue the original items position wil revert if the position update was not finalized by manually de-selecting the original item by clicking off it in-game.

[LeonBlade]

Thanks! I'll review this when I get a chance before merging!