contrib: import mk (r4631) locally, instead of a svn:external
http://bugs.activestate.com/show_bug.cgi?id=101753

This makes it easier for the planned migration to git; it's not like we
actually modify mk anyway.

(manually integrated from komodo (trunk) change 83381 by marky)


git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14102 b87d16e7-d29f-4ee1-b5ec-817d645d335f