renamed stand dialog class.  User will see 'New Stand'
project files changes for class changes
adding appstate class to check if UI is dirty.  May not be necessary in the long run
stetic generated code changes
removed obsolete method drawgrid
added method to load a default (blank) grid
removed method that was no longer used
added application icon
Will handle all grid drawing interaction.  Currently draws the mapping area over a hardcoded image
test image for background of mapping area