This removes all of the OnDemand code embedded throughout
the main codebase. Individual files related specifically
to OD have been left in place, but removed from the build.
... because the two macros have the same expansion, and are both checked for
in the --keyword arguments passed to msgfmt by locale/update_po_files.sh.
This commit makes ONLY such changes, and comments in Internat.h. It is big
but quite harmless.
The intention is to introduce a type distinction in a later release, by defining
XXO differently. XXO is used where & characters in strings (for hotkeys of menu
items or control prompts) are permitted, XO where not.
Fixed by ensuring new imports now always copy data in. The 'Projects' preferences page is no longer needed. There is one fewer warnings pref. The relevant import pref is gone. Importing of wave data no longer offers the option of working by reference.
I have kept the menu item 'Check Dependencies' for now, as it gives a way for a user to convert an old by-reference audacity project to a self-contained one. The message for self-contained projects has been updated.
... Unnecessary because transitively included.
But each .cpp file still includes its own .h file near the top to ensure
that it compiles indenendently, even if it is reincluded transitively later.
... except Audacity.h
This forces us to make each header contain all forward declarations or nested
headers that it requires, rather than depend on context.
