Forwarded request #1113282 from iznogood

- Update to version 2.1.0:
+ Support new architecture name "la64v100"
+ Fix race condition when downloading sources
+ Properly handle partial download errors
+ Fix regressed ETag handling to prevent redundant file downloads
+ Fix parsing remotes specified on the command line
+ Fix bug when tracking ref-less sources (like local sources)
when using project.refs
+ Follow semantic versioning more strictly
+ New `bst build --retry-failed` feature
+ Fix parsing override-project-caches configuration
+ Fix crashes when instructed to only download from mirrors, and
some sources have no mirrors defined
+ Drop unnecessary dependency on dateutil
+ Fix severe hangs when can occur when running out of disk
space specifically when attempting to open and write to a new
log file
- Update to version 2.0.0:
+ Please see the include NEWS file for all the changes during
development.
- Add python3-Cython BuildRequires: New dependency.
- Drop the 's:pytest-runner::' setup.py sed call, merged upstream.
- Drop noarch BuildArch: Package is no longer noarch.
- Add missing Requires: python3-Jinja2, python3-pluginbase,
python3-protobuf, python3-ruamel.yaml.clib, python3-setuptools
and python3-ujson
- Add disabled python3-pyroaring Requires: Needed, but not yet
available in openSUSE. (forwarded request 1115708 from luc14n0)