Fixed implementation of CToolBar so tool bar buttons now work and tool bars are generated properly from the resource file.  Added Export Dialog to begin process of testing NSF/etc. exporting.
Updating instruments to include stuff for export that was previously commented out due to lack of impl.  Fixing Frame Editor mouse click position sensitivity.  Fixing Export Dialog's progress display.
Some code clean up.  Implementation of comments dialog [not used in 0.4.1].  Continued work on export.