Fix build w/ all options.
Had this update sitting around and forgot about it - updated to latest
released. Added NLS PKG_OPTION and PKG_BUILD_OPTION. Updated patch. Extra
include in PLIST. Regenerated distinfo. Package ChangeLog:

http://pxlib.cvs.sourceforge.net/viewvc/pxlib/pxlib/ChangeLog?revision=1.79
Use pkg-build-options to pull in link dependencies in bl3.mk