Log Message:
Update to 0.3.12.  There have been lots of changes since 0.2 (this version
is almost a rewrite of the program).  Note that this is still a development
version but includes new features that may be required by packages using
scrollkeeper (which won't work with the old 0.2).

Provide a framework to automatically rebuild scrollkeeper's database from
packages installing OMF files under share/omf/;  they only need to include
omf.mk in their Makefile and take care to install OMF files in the said
directory.

Reviewed by rh and wiz.