language update  refs #3430
Extend tracking with all changes.
Ignore all errors in TestingEnvironment::logVariables()
Merge pull request #6380 from czolnowski/extend-tracking-code-clean

Let plugins further extend tracking code via Event 'Piwik.getJavascriptCode'
Remove token auth option from core:run-scheduled-tasks command since superuser access now allowed for all commands.
Remove unnecessary UITests testsuite in phpunit.xml.dist file.
Add setSingletonInstance method to Option for testing.
add @ignore so the method does not appear in the auto generated API doc on http://developer.piwik.org/api-reference/classes
Increasing PHP requirements to 5.3.3 refs #6390
When tracker fails, return error code so that it fails the tests.
Merge branch 'master' into translationupdates
Merge branch 'master' into translationupdates
language update  refs #3430
Merge pull request #6391 from piwik/translationupdates

[automatic translation update] Updated 278 strings in 10 languages (pt, cs, da, de, el, es, et, it, pl, ja)
Fixes #6383 Invalidate caches before running the upgrade.
Merge remote-tracking branch 'origin/master'
Added logging in the console when running scheduled tasks
Fixes #6373 When Real time segments are disabled, then we allow "view" users to create "Pre-processed" segments. By default though only admin users can create pre-processed segments.
Refs #6373 Fix the link to user settings in menu
Fixes #6309 Remove "Website" from the Email subject and form the report title.