* New upstream release (Closes: #692602)
  - Thanks to Barry Warsaw for report
* debian/control
  - Added python-chardet, python3-chardet to Build-Depends and moved
    them from Recommends to Depends since chardet is now required
  - Added python(3)-urllib3 (>= 1.5) to Build-Depends and Depends
    since the embedded copy is no more a fork
  - Removed python(3)-six since python(3)-urllib3 is not embedded
    anymore
  - Removed python-gevent and python-oauthlib from Recommends
    since upstream is not using them anymore
  - Bumped Standards-Version to 3.9.4 (no changes needed)
  - Fixed lintian vcs-field-not-canonical
* debian/copyright
  - Updated to reflect upstream switch to Apache 2.0 and updated
    copyright years
* debian/patches/01_do-not-use-python-certifi.patch
  - Removed because no longer necessary
* debian/patches/02_do-not-use-embedded-python-six.patch
  - Removed because no longer necessary
* debian/patches/01_use-system-ca-certificates.patch
  - Use the bundle provided by ca-certificates instead of
    the embedded one
* debian/patches/02_use-system-chardet-and-urllib3.patches
  - Use the system python-chardet and python-urllib3 instead of the
    embedded copies