@iquito thanks for the tip, it is a better solution!

 (not sure why this has changed in last couple days, no related code was changed)"

refs #5192 added generator for menus, updated more plugins to use menu class, fixed some bugs, improved design, fixed tests, ...

added possibility to get/create a tracker by using "Tracker = AnalyticsTracker.getTracker" instead of "Piwik.getTracker". Variable will be set only if no such variable is defined yet

Add quote identifier to prevent error: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corr

refs #4706 added possibility to register a closure or a callable method to process processed metrics as late as possible and to make sure it always returns the correct value whenever it is called. Otherwise the value does not get updated in case for instance the nb_visits column changes (done in SumRow). Whenever there is a column that is not numeric and not the label column it should use a callback method instead of calculating the value directly to make sure the correct value is returend when using flat or truncate or ...

Fixes  #5123 PHP Tracker, added new method setForceNewVisit() to force creation of a new visit + with test

Close https://github.com/piwik/piwik/pull/218