Add *.obj to .gitignore
Normalize sounds

- Volume of each current sound effect is closer in
  relation to each other.

- Changed dirt (sounds like a 'deeper' gravel) and
  wood. Removed 'clunk' sound from water_break
  and added leaves_break sound to flowers.
Testing text input fields

- Press 'T" during gameplay to popup a text field. This could
  be used for user commands, chat, etc.

- The field is generalized so it can be drawn anywhere,
  options that require user input, for instance.

- Made  a base control class gui.Control
Merge branch 'master' of https://github.com/boskee/Minecraft
Merge branch 'master' into text-input
Add command parsing and a couple of working commands

- GiveBlockCommand, to give a specified number of a block with
  specified block ID to the player

- SetTimeCommand, to set the current world time.

- (These are runtime commands, typed in during play by pressing
  'T' to bring up the text input, and typing /command..., eg:
   "/give 2 64"
Merge branch 'master' of git://github.com/tfaris/Minecraft