Fixing major OH panel bugs

I pulled the most recent version and there were a lot of bugs in the overhead_1.xml file - a lot of git related tags that shouldn't be there and a bunch of duplicate animations and stray <animation> tags.  I fixed the XML and it should be fine now.

The overhead_1.ac isn't working either.  I couldn't even get it to open in Blender.  I reverted it back to the previous working version because I couldn't make heads nor tails of any of its errors without Blender.  The FG console now reads "Could not find at least one of the following objects for animation: 'dashboard.text.knob', 'dashboard.text.indicator'."  I think the .ac file got corrupted in the same way as the .xml.  I has a bunch of git-related tags in it too, and probably some duplications.