Version 1.1.0 released 2018-04-xx

 * Significant performance improvements
   (https://github.com/matrix-org/python-canonicaljson/pull/7,
   https://github.com/matrix-org/python-canonicaljson/pull/8,
   https://github.com/matrix-org/python-canonicaljson/pull/9)

Version 1.0.0 released 2015-08-21

 * Initial release

Version 1.1.0 released 2018-04-06

 * Significant performance improvements
   (https://github.com/matrix-org/python-canonicaljson/pull/7,
   https://github.com/matrix-org/python-canonicaljson/pull/8,
   https://github.com/matrix-org/python-canonicaljson/pull/9)

Version 1.0.0 released 2015-08-21

 * Initial release

Fix release date in changelog
Fix release date in changelog
