mtazzari/uvplot: 0.2.11

New features:

• feature: added support for Python 3.7, 3.8, and 3.9
• feature: added support for installation inside CASA 6.x. Support for CASA 5.x and earlier is dropped.

Bugfix:

• when exporting visibilities with export_uvtable the weights of each polarisation were averaged, while they should be summed (the weight of the weighted average is the sum of the weights).
• bugfix: string encoding (which was implemented to obtain Python 2 and 3 compatibility in CASA 5) was causing errors in CASA 6 (see #43).

Documentation:

• Major revamp to documentation, now structured in multiple pages.
• Documentation moved to uvplot.readthedocs.io, which has many advantages and natively supports docs versioning.