Merge pull request #6 from konimaru/master

support tools added
[lamestation] Modified LameFunctions Sleep to use waitcnt-based timing; updated all demo with Sleep; switch TankBattle to external graphics files
Merge git://github.com/konimaru/lamestation-sdk
Forgot one image file
Also forgot to add one of the TankBattle fonts
Merge pull request #2 from lamestation/master

update