Change default ranking type to "rules". Refactor Controller constructor to allow tests configure ranking parameters.
Stopping and restarting PlacesInterestsUtils.
Test helper adds urls to history from an array of hosts.
HistoryReader can be stopped on demand.
Rename misleading resubmitFullHistory to resubmitHistory in Controller.
Allow configuring Controller with number of days to read from history.
Controller disable/enable and uninstall.
Enable/disable/uninstall Controller from Application.