BlockID "main" - check for basestring instead of str
Allow BlockID "main" string formats like: "35", "35.0", or "35,0"
Command updates

- GiveBlockCommand can accept block_id formats like
  "35", "35.0", and "35,0". All resolve to the same BlockID.

- Add GetIDCommand which just prints out the players
  current block ID
Change name of SapphireOreBlock from "Ruby Ore" to "Sapphire Ore"
Merge branch 'master' of git://github.com/tfaris/Minecraft