BRANCH 4.2-DEV: added ability to add dependencies on checkin
BRANCH 4.2-DEV: added a watch drop folder script
BRANCH 4.2-DEV: made watch folder more robust
BRANCH 4.2-DEV: more work on stability
BRANCH 4.2-DEV: added .checkin state
BRANCH 4.2-DEV: separated out the class that does the checkin