Update to 0.5 (ok apb@).

0.5 @ 2013-05-21
    CVS-NT support. Code is Coverity-clean.
Updated devel/cvs-fast-export to 0.5
Update to 20130803. ok jmcneill.
Note raspberrypi-userland update.
Remove -O from SYNOPSIS. Noted by jmc@OpenBSD.
Simplify PKGNAME for older make(1)s or other parsers.