* Check user write permissions before saving project and net list files.
* Append read only to file name and path in title bar when the user
does not have write privileges.
* Don't display file dialog every time the net list or project file is
saved.
* Add save as and save project file as commands.
* Make capitalization of CVPcb consistent in all user strings.
* Doxygen comment and coding style policy fixes.
* Set default button on all dialogs that do not already have a defined
default button. The only exception is the EESchema net list dialog
which needs converted over to wxFormBuilder and due to it's design makes
setting the default button in any tab other than the default tab
problematic.
* Fix escape key dialog handling bug in EESchema print post script
dialog.
Wayne Stambaugh
jean-pierre charras