[Midnightbsd-cvs] mports: mports/Mk: Add first cut of update.

[ctriv at midnightbsd.org]

Log Message:
-----------
Add first cut of update.

Modified Files:
--------------
    mports/Mk:
        bsd.mport.mk (r1.149 -> r1.150)
        (http://cvsweb.midnightbsd.org/mports/Mk/bsd.mport.mk?r1=1.149&r2=1.150)

Added Files:
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    mports/Mk/components:
        update.mk (r1.1)
        (http://cvsweb.midnightbsd.org/mports/Mk/components/update.mk?rev=1.1&content-type=text/x-cvsweb-markup)