- ps-menurc removed in GIMP 2.7.2 (i.e. stable 2.8.0) according to
NEWS.pre-2-8.
- in our main README, redirect now to devel-docs/README.md as entry
point for contributors.
- move HACKING to devel-docs/ and specialize it into a "how to build
from git and contributed" docs:
* Make it markdown.
* Remove some now obsolete or redundant recommendations (to be fair,
we can probably clean up the file a bit more, but we'll see).
* Add/improve relevant information.
* Make more obvious when you want to build from tarball or git.
* Just keep a single short paragraph about the coding style to
redirect people to the appropriate CODING_STYLE.md file.
* Don't recommend sending patches to the mailing list anymore.
- move CODING_STYLE.md to devel-docs/.