dalehenrich/metacello-work#223: useNew instead of useIncoming
found a couple of places where parent is wrong when looking at mounted directory nodes (happens when the mount name isn't the same ... methinks)
correct the `break set` man page
implement `project clone` and `project lock`, augment `project load`

- implementations all moved from the `project list` menu items
debug `project load` and `project clone` commands
Merge branch 'dev'