Removed CMService_KissMetrics_Client::setViewer()
Moved KISSmetrics identification code to the page and ajax request responses
Only passed action as an argument to CMService_KissMetrics_Client::track()

- Added public method getTrackingPropertyList() to action
- Used (and refactored) getLabel() to set the event name, removed _getTrackingEventName()
- Set user id automatically using the action's actor by default
- Ignored KISSmetrics tracking without user id silently
- Adjusted test
Uppercased words in CM_Action_Abstract::getLabel()
Moved CM_Tracking to CMService_GoogleAnalytics_Client
Introduced CM_Service_Tracking_Abstract as an interface
Introduced CM_Service_Trackings to iterate over tracking services

- Adjusted config
Adjusted usages of tracking services