nokia basemap: change satellite imagery to use jpg rather than png - makes more sense!
added user plugin update mechanism
added preferences for user plugin updates
made plugin update interval configurable
move all preference related stuff in prefs subfolder
munge code fixing - yet again, another RPC method has had it's munging removed - get_portal_details this time
Merge branch 'master' of https://github.com/jonatkins/ingress-intel-total-conversion