changed ExampleRssWidget to use simplexml instead of Zend_Feed, which is unused now and can be removed
refs #4134 renamed some hooks
refs #4134 renamed hook
refs #4134 better name for constant after renaming the hook
refs #4134 renamed template hooks
refs #4134 trigger general API event for all actions
renamend referer to referrer in some translation keys & translations
renamend referers to referrers in translation keys
updated language files
refs #4134 added general event for controllers
refs #4134 renamed some more hooks
refs #4134 use plural to indicate a developer can add multiple entries or widgets
refs #4134 added generic API hook
refs #4134 renamed some more hooks and removed some not used and not needed hooks
this should not be a core plugin
refs #4123 fix some phpstorm inspection warnings
Updating README to link to  http://piwik.org/blog/2013/10/our-latest-improvement-to-qa-screenshot-testing/
Fix some tests
Fix build
Fix skipped test