optimized sphere and blocktype
added hemispheres and blocks ids
Fix issue #51 - tab completion reporting incorrect globals
Reworked arc code - More versatile circles/arcs in horiz and vertical planes
rainbow.js shows an example of how to use the new arc() method
Correct handling of strokeWidth for vertical arcs
Add some useful tools
Merge pull request #53 from AlexBarnes86/master

Add some useful tools for use with the drone
added default values for chessboard()
added .js~ and .js# (emacs temp files) to ignore list
first phase of comments update
Merge pull request #1 from walterhiggins/master

Updating from the Master Repo