added CartridgeListAdapter
draft: connect draft of new settings activity
refactoring: added CartridgeHelper
refactoring: added CartridgeHelper
map for single cartridge and all cartridges
first draft of xml based preferences
huge preferences re-building
change string: pref_units_coo_latlon_dec
change fromat string pref_units_coo_latlon_min,
pref_units_coo_latlon_sec
huge refactoring of preferences (use now xml based preferences) - many
open issues/todos