Other improvements:
- make USE_LIBTOOL actually working;
- enable building of python module and make python the secondary category;
- install api documentation;
- reshape PLIST to fully use screen estate;
- replace ugly ${FILESDIR}/patch.Makefile with normal patch.
previous commit message to bsd.port.mk, which said INSTALL_SHLIBS. Boo.)
Line up the rhs of variable assignments nicely. Remove a couple of extra
whitespaces while I'm here.
Suggested by: sobomax
