HEAD-465: allow *uncommited* changes in MAPI_DIR to work for "bin/build-fstar.sh"
HEAD-465: allow *uncommited* changes in MAPI_DIR to work for "bin/build-fstar.sh"

Note: the equiv change could be done to allow the same for the adminui,
pubapi, capi and portal zones.

kaizengarden/sdc-headnode,kaizengarden/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode,numericillustration/sdc-headnode