Note: not sure if creating the docs via Sphinx is done as it should be... copied this from some other projects in d:l:p.

- specfile:
* update copyright year
* remove patch python-blinker-remove-nose.patch; included upstream
* docs and license changed to .rst
* build docs using Sphinx
- update to version 1.5:
* Support Python >= 3.7 and PyPy. Python 2, Python < 3.7, and Jython
may continue to work, but the next release will make incompatible
changes.