Added fixes to args parser.
Changed flow change command to accept number without ':' sign.
New updates. Now git add . and rebase could be by default.
Moved rebase to finish command.
Added rebase choice to flow push.
Few fixes.
Create basic package for ds-flow
Add 'main' execution function for flow.py
Delete unused local_settings.py.example file, configuration should be moved to seprate config files
Update LICENSE.txt files + README, add authors + similar projects blocks
Add nice image of workflow