While at it:
* Drop documentation, which is mostly useless. Only headers are actually
documented, and these are more accessible without doxygen-generated HTML.
* Remove USE_NINJA stuff - devel/cmake module handles that.
* Add HOMEPAGE. There isn't much useful information on SourceForge project
page, but it is at least a pointer.
* Rewrite pkg/DESCR for more precision, and mentioned that lit2epub script,
which is installed with this port, requires clit package.
OK sthen@