If a visitor uses Epiphany browser (webkit version) Piwik reports "Safari 531.2" as his browser.
This is a special case. Need to add test cases for Geck and Webkit user agent strings.
Keywords: browser, epiphany, visitors
Tackle this with #1123
(In ) fixes #1123, fixes #1132 - convert WebKit version numbers to Safari product versions; add Epiphany browser detection; re-organize browser families for consistency
Piwik doesn't support a browser being in multiple browser (layout engine) types/families, so Epiphany is simply classified as a WebKit browser. This is probably a reasonable assumption by the UserSettings plugin.