Merge pull request #63 from ehsteve/master

Updating upstream
Merge pull request #75 from ehsteve/master

Lots of updates!
Merge remote-tracking branch 'ehsteve/master'
Merge pull request #77 from ehsteve/master

Updating master from my fork
Fixed the orientation of the axes and solar north
Merge pull request #78 from ayshih/angles

Azimuth/elevation axes and solar north
removed command count fields
Merge remote-tracking branch 'upstream/master'
refactored display textfields, fixes to plotting