Fixes #3220 When the core is not dispatching the request (PIWIK_ENABLE_DISPATCH is not set, or set to false), then getPiwikUrl will not update the value in the DB.
Thanks for the report & again sorry for such long delay to fix it!

Error messages friendly to CLI output (no html, spaces displayed correctly...). Factoring out class CronArchive from archive.php.

Improving XHProf support. At the end of a request with XHProf enabled, it will output the link to see the profiling info. New --xhprof option to archive.php, and enabling XHProf when &xhprof=1 is found in the request.

Refs #3405 fixing regression in concurrent runs

Fixes #3405 Clearning up the code and fixing the logic so archive.php will process websites properly when executed concurrently!

Refs #4202 removing functions Piwik_GetOption and SetOption. Now use: Option::get and Option::set and Option::delete

Removed Piwik::log and replace with calls to Log::... functions. Also changed logging level on travis.

Adding MetricsFormatter class which knows how to format/display metrics (time, money, size, etc)

Added namespaces to functions.php files in the five plugins that had one
Work in progress