- restructured the FileBinner to be more flexible and added the FileGraph for preprocessing into graphs
- header and rawheader are now kept if existing
- add tests for the core classes
- add time slew option
- adjust EventSkipper for km3pipe bug
- update docs
- remove deprecated os2 and muon mc_info_extractor

- orcasong is now called legacy
- orcasong_2 is now called orcasong

Other changes:
- Added one line 2017 bin edges to repo
- added unittests
- added versioning for files created with orcasong
- Expanded doc
- Added check to calib if calib has been done to file already