Makefile: 1.71 release

GUI: Quick fix for a crash when mContextItem->parent() is NULL

1.69: Updated Makefile

1.68: Updated Makefile

1.67: Updated Makefile

1.66: Update Makefile

1.65: Update Makefile

1.64: Updated Makefile

Added missing .cfg files to installer

1.63: Updated Makefile for release