PyVO v1.4 release announcement

[Tom Donaldson]

Dear IVOA,

On behalf of the PyVO maintainers, I am pleased to announced the release of PyVO version 1.4.  Many thanks to all the contributors and maintainers!

Major changes are listed below.  See also https://github.com/astropy/pyvo/releases/tag/v1.4 for the full release notes.

Major Changes:
- Overhaul of the registry.regsearch as discussed in https://blog.g-vo.org/towards-data-discovery-in-pyvo.html. See also the latest Registry Search documentation. (By @msdemlei in #289)
- Added the TAP Table Manipulation prototype (cadc-tb-upload). (By @andamian in #274)
- More explicit exception messages where the payload is sometimes considered if it can be presented properly (simple body text or job error message). (By @andamian in #355)
- we now ignore namespaces in xsi-type attributes; this is a lame fix for services like ESO's and MAST's TAP, which do not use canonical prefixes while astropy.utils.xml ignores namespaces. (By @msdemlei in #323)
- Versions of astropy <4.1 are no longer supported.
- pyvo.dal warns on results with overflow status. (By @andamian in #329)
- Allow session to be passed through in SSA and DataLink.  (By @trjaffe in #327)
- pyvo.dal.tap.AsyncTAPJob treats parameter names as case-insensitive when retrieving the query from the job record. (By @rra in #357)


Best Regards,
Tom