Opentimelineio

Big features:
- Transition support (reading from EDLs, writing to RV)
- RV session file adapter (writing only) (with help from tweakjon)
- Maya Sequencer adapter (from bashesenaxis)
- HLS adapter (from reinecke)
- Support for saving a collection of OTIO objects in one file (e.g. a bin of timelines & clips)

Smaller stuff:
- API clarification for inclusive/exclusive end_time.
- Conceptual architecture documentation.
- Fixed non-24 fps timecode. (from reinecke)
- More robust EDL parsing based on production data from real studios. (from adaro and others)

This release includes:
- Final Cut Pro 7 XML adapter (from bashesenaxis )
- Adobe Premiere support via the FCP 7 XML adapter (from bashesenaxis )
- Cross-platform PySide viewer application and widget for visually inspecting OTIO compatible files. (from bashesenaxis )
- Marker support in the CMX EDL reader
- New code documentation system
- Coverage `make` target
- Optimized the unit test run time

Includes:
- Support for versioning schemas ( 10 ). As things change, developers can define upgrade functions so that future versions of OTIO can gracefully upgrade older versions of the schema.
- Nesting and functionality to fetch the range of nested items/compositions ( 16 13 )
- Removing the unused "transform" property ( 12 )
- Python 3 support ( 19 24 20, reinecke )
- Conversion to/from seconds for RationalTime ( 17, reinecke )
- Cleanup on the `setup.py` ( 18 reinecke )

Thank you!

First public push of OTIO to early collaborators.