v0.7.1, 2021-02-18 -- Get latest list.
v0.7.0, 2020-08-11 -- Updated to fix Piwik -> Matomo rename and get latest list.
v0.6.3, 2017-07-19 -- Updated to latest Piwik list to support more hidden keyword URLs for Bing and Google
v0.6.2, 2017-05-04 -- Fixed issue where hidden_keyword regexes had too many slashes removed, and updated Yahoo! Japan hidden_keyword_paths.
v0.6.1, 2017-03-06 -- Fixed issue where get_all_query_params_by_domain didn't return a complete list
v0.6.0, 2017-02-28 -- Fixed issue where hidden_keyword SERPs weren't being detected properly, and updated to latest Piwik list
v0.5.0, 2016-09-23 -- Switched to storing search engine list in JSON, and fixed issue where Yahoo homepage referrers were being detected as SERPs
v0.4.1, 2016-09-06 -- Add missing ruamel.yaml requirement to setup.py
v0.4.0, 2016-09-06 -- Updated to use latest Piwik search engine YAML instead of PHP as source; added get_all_query_params_by_domain function
v0.3.0, 2016-01-06 -- Added Python 3 support, updated to 2.14.3 Piwiki search engines
v0.2.8, 2015-09-10 -- Updated to latest Piwik search engines, fixed a minor bug that resulted from pickle file update
v0.2.7, 2014-12-16 -- Fixed bug that prevented classification of r.search.yahoo.com and updated search engines list
v0.2.6, 2013-10-21 -- Fixed a bug in _get_lossy domain that prevented google.it from being picked up as a search engine
v0.2.5, 2013-08-28 -- Fix small bug in _unicode_parse_qs
v0.2.4, 2013-07-20 -- Add support for custom parsers and naive search engine detection/keyword extraction.
v0.2.3, 2013-07-19 -- Unicode fixes and minor bug fix in parser.parse.
v0.2.2, 2013-07-18 -- Improvements to test cases and major performance optimizations when using serpextract for a large number of SERP URLs.
v0.2.1, 2013-07-17 -- Quick fix for engine lookup bug.
v0.2.0, 2013-07-17 -- Add missing edge cases found in Piwik's Common.php for search engines.  Significantly changes detection of SERPs (Google in particular).
v0.1.2, 2013-07-05 -- Safe reading of .pickle file from package, add docs, bug fix to _get_lossy_domain, additional tests.
v0.1.1, 2013-07-02 -- Fix import error in setup.py and use iso3166 for countries list.
v0.1.0, 2013-07-01 -- Initial release.
