small fixes
cater for missing WO field
added dependency info
- argparse introduced to have optional dry_run and assignee params
 - cred.py turned into sample
 - well, documentation updated
 - no unit tests! is that possible? ;)
added 2.7 to requirements
subtask creator: the state got from hydr000 plus:
- common config introduced
- additional CL options to exclude BA and/or TA subtasks