Radical.pilot

- Updated resource files
- Updated state model
- [Closed tickets](https://github.com/radical-cybertools/radical.pilot/issues?milestone=12&state=closed)


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- Fixes error in state history reporting


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- Support for state transition introspection via Task/Pilot
state_history
- Cleaned up an streamlined Input and Outpout file transfer workers
- Support for interchangeable pilot agents
- [Closed tickets](https://github.com/radical-cybertools/radical.pilot/issues?milestone=11&state=closed)


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- Support for output file staging
- Streamlines data model
- More loosely coupled components connected via DB queues
- [Closed tickets](https://github.com/radical-cybertools/radical.pilot/issues?milestone=10&state=closed)


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- Renamed codebase from sagapilot to radical.pilot
- Added explicit close() calls to PM, UM and Session.
- [Closed tickets](https://github.com/radical-cybertools/radical.pilot/issues?milestone=9&state=closed)


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- Added support for callbacks
- Added support for input file transfer !


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