* added test for existence of dev_mgmt directory (but just checking if it exists, nothing more)
* only on it not existing is the dev_mgmt repo checked out
* don't see a need for messy workarounds for subshell environments (read: 'cd not "working" in an executed shell') so just stating full path to 2nd script to run (can invoke however, the initial bootstrap with . (e.g. prompt$ . dev_bootstrap.sh)