python-PyJWT-1.5.3-1.21

- update to version 1.5.3:
  * Changed
    + Increase required version of the cryptography package to
    >=1.4.0.
  * Fixed
    + Remove uses of deprecated functions from the cryptography
    package.
    + Warn about missing algorithms param to decode() only when verify
    param is True #281

- update to 1.5.2:
  - Ensure correct arguments order in decode super call [7c1e61d][7c1e61d]
  - Change optparse for argparse. [#238][238]
  - Guard against PKCS1 PEM encododed public keys [#277][277]
  - Add deprecation warning when decoding without specifying `algorithms` [#277][277]
  - Improve deprecation messages [#270][270]
  - PyJWT.decode: move verify param into options [#271][271]
  - Support for Python 3.6 [#262][262]
  - Expose jwt.InvalidAlgorithmError [#264][264]
  - Add support for ECDSA public keys in RFC 4253 (OpenSSH) format [#244][244]
  - Renamed commandline script `jwt` to `jwt-cli` to avoid issues with the script clobbering the `jwt` module in some circumstances. [#187][187]
  - Better error messages when using an algorithm that requires the cryptography package, but it isn't available [#230][230]
  - Tokens with future 'iat' values are no longer rejected [#190][190]
  - Non-numeric 'iat' values now raise InvalidIssuedAtError instead of DecodeError
  - Remove rejection of future 'iat' claims [#252][252]
  - Add back 'ES512' for backward compatibility (for now) [#225][225]
  - Fix incorrectly named ECDSA algorithm [#219][219]
  - Fix rpm build [#196][196]
  - Add JWK support for HMAC and RSA keys [#202][202]

- Restore runtime dependency python-ecdsa

- Convert to singlespec
- Remove unneeded dependency python-ecdsa
- Use "download_files" in _service file to automate source fetching

- Drop pycrypto as dependency, we only need cryptography

- Use update-alternatives so it can be co-installable with python3-PyJWT
- Use dos2unix on jwt/__init__.py
- updated source url to files.pythonhosted.org
- Run the spec file through spec-cleaner
- Drop PyJWT-1.1.0.diff which was only used on rhel (?)

- Include in SLES 12 (FATE#321371, bsc#998103)

- Use https for Source url

- update to 1.4.2:
  - A PEM-formatted key encoded as bytes could cause a `TypeError` to be raised [#213][213]
  - Newer versions of Pytest could not detect warnings properly [#182][182]
  - Non-string 'kid' value now raises `InvalidTokenError` [#174][174]
  - `jwt.decode(None)` now gracefully fails with `InvalidTokenError` [#183][183]

- BuildRequire python-pytest-cov >= 1.7