* widget.c (DEFAULT_FACE_FONT, EmacsFrameSetValues, setup_frame_gcs)
(resources, setup_frame_cursor_bits): Remove unused variables and
functions, esp. wrt. font.

* widgetprv.h (EmacsFramePart): Remove font.
Remove support for DJGPP < 2.02

This also removes some specially-licensed files and lots of accompanying
explanation.
src/process.c: fix a comment typo
Add changelog entry missing from previous commit
Minor fixes in the last commit wrt MS-DOS build.

 config.bat: Fix EOL format in lines modified by last commit.

 msdos/INSTALL: Fix last change.