Removed public peers count function.
Removed public datasets count function.
Removed public references count function.
Removed public repositories count function.
Removed public users count function.
Added selector to choose between the two types of data persistence. Updated settings page.
Updated settings and system modules to manage the database type field. Updated the styles of the settings page.
Fixed name of database type field input into the settings page.
Added code to manage the data files routing setting.
Udpated label for the generic options of the installation into the settings page.