Changed look of undo & redo buttons
Auto select pencil fix

Now the pencil is auto selected only when actual tool can't be used for
drawing items
Paint bucket tool fix
Merge branch 'master' of https://github.com/Crypton33/forgottenmapeditor

* 'master' of https://github.com/Crypton33/forgottenmapeditor:
  Paint bucket tool fix
  Auto select pencil fix
  Changed look of undo & redo buttons