- drop old build system
- move shared include and source files to common directory
- drop "rc-" prefix from shared include and source files
- move executable-specific code to individual directories under src
- adjust top-level .gitignore file for new build system
This closes#489.
Rather than listing explicit object files, ignore all of them in
the whole tree.
Also ignore patch/gdb related files throughout.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>