Sketchbot Testing for Lego Mindstorm

Figuring out IK functions
cleaning up IK tests
Fixing undefined this.robot
Merge branch 'hardware-tutorials-dev' of github.com:GoogleChrome/ChromeWebLab into hardware-tutorials-dev
Testing direct motion control of nxt bot
Using stopAndHoldNow instead of stopAndIdleNow while zeroing seems to hold the axis in place before doing a move
Reliable positioning of simple coords and repeated moves
Testing with direct coords
Added 'slop' for each gear into IK fns
changed IK to account for gear offsets
Adding updated IK to DrawMachine
Updating config params for mindstorm gearboxes
Cleaned Up IK fn and moved variables into ConfigParams
Changed DRAW_PARAMETERS in ConfigParams to reflect Mindstorm
Adding config params and fixing typo issue in _drawNextPart function
Fixing conflicts in config params file
Fixing merge conflicts
Getting robot to respond to labqueue drawing
Adjusting Config CAM and draw widths, plus updating arrays in DrawMachine to calculate all values and iterate based on buffer index
debugging for nxt lego robot