test
Merge remote-tracking branch 'upstream/master'
improving lookat behavior
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test
thingy
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test
more prototyping of head feature geometry
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cleaning up look at code - Stephen helped find a transmission bug - fixed.
Merge remote-tracking branch 'upstream/master'
more cleanup on lookat
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added method to set look at vector on/off
clean up
added menu option for setting display of lookat vectors
Merge remote-tracking branch 'upstream/master'
Merge pull request #389 from ey6es/master

Fixed threading issue with Environment, some progress on orienting based on gravity (still a work in progress).
cleaned up some stuff