Should allow Pcbnew code easier to change and Gerbview code more understandable and easier to maintain.
Code cleaning (remove dead code, add comments).
Minor other enhancements.
* EDA_DRAW_FRAME completely encapsulated except for DrawFrame member.
* Moved members specific to Pcbnew from EDA_DRAW_FRAME to PCB_BASE_FRAME
or PCB_EDIT_FRAME as appropriate.
* Replace EDA_TOOLBAR with wxAuiToolBar as EDA_TOOL bar provided no
additional functionality and made code less readable.
* Remove EDA_TOOLBAR class definition from wxstruct.h and delete file
wineda_toolbar.cpp.
* Rename tool bar members to something more descriptive since the
horizontal and vertical references wont mean anything once the
tool bars are movable.
* Lots of dead code removal.
* 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.
Lorenzo Marcantonio
jean-pierre charras
Dick Hollenbeck
Wayne Stambaugh