Fixed a bug where the players could not items

confirm_item_purchase="0" resulted in "DataPack operation is out of
bounds." upon players buying items.
Added .sublime-build to .gitignore
Added chat message on succesful item purchase

English and danish translations have been updated, but french is still
missing the new "Item Purchase Succesful".
Woops forgot to change PrintToChat to CPrintToChat
Fixed translation warning
Merge pull request #2 from Phault/master

Fixed a bug when buying items with confirm_item_purchase="0"