Ragavi

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- Error bars now have caps
- Introduced linked legends
- Default displayed data is now flagged
- Flagged data shown using inverted-triangle

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- Added flag button on plot
- Plotting D-Jones tables now supported
- Fixed bug in field_name to field_id converter

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- Fixed bug due to string encoding for python2.7

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- Updated version number

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- Now supporting python3
- All fields plotted by default on the same plot
- ``--field`` command line switch is now optional
- Different fields now plotted with different markers
- Migrated to ``xarray-ms`` from ``python-casacore``
- Added glyph alpha selector, glyph size selector, and field selector
- Re-organise selector panel
- Added title and axis label size selectors
- Add field symbols alongside field names on check-boxes
- Allow automatic plot scaling
- Medians now shown in plot titles

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- Added support for multiple table, fields and gaintype inputs
- Multiple table single field single gaintype input also allowed
- Plots from multiple tables plotted on single html file
- Added slider to change plot sizes
- All notifications and errors now logged to ragavi.log