Add a new "mkports.sh" helper script, which will convert the git tree into
the pcbsd-utils & pcbsd-utils-qt4 ports.

While here, convert the pcbsd-utils port to use STAGING
Update the pcbsd-utils-qt4 stuff to work with STAGING now, in prep to
commit to FreeBSD ports tree
Merge branch 'master' of github.com:pcbsd/pcbsd