* Add USE_IMAGES_IN_MENUS definition to override the default platform
  behavior for adding images to menu items.
* Update COMPILING.txt to document how to use USE_IMAGES_IN_MENUS.
* Fix Windows segfault when creating language selection submenu introduced
  by new bitmap code in r3087.
* Changed per email from JP from CVPcb to CvPcb because I'm getting old and
  blind and misread the email.
* Lot's of Doxygen comment and coding style policy fixes.