* Refactor locate footprint function into the board object.
* Remove locate.cpp as it is no longer needed.
* Actually remove track.cpp from repo that I missed on the last commit.
* Increase the size of the layer pair tool bar bitmap so that it looks
better with the new larger tool bar images.
* Fixes to prevent common headers from complaining when not included
in the correct order in source files.
Wayne Stambaugh
jean-pierre charras