v15:
  * fixed an issue whereby if a user has GPS location services enabled but not network (wifi/celltower) services enabled, the library would never return an on-demand or after-timeout location
  * workaround for a bug in Android 4.2.1 so the one-shot location request doesn't keep on repeating forever
  * allow the library to only request fine accuracy instead of course accuracy when it asks for its own location hits, by setting LocationLibrary.useFineAccuracyForRequests(true)
  * exposed the passive location provider in LocationInfo.lastProvider


git-svn-id: http://little-fluffy-location-library.googlecode.com/svn@15 88fb8fb9-40e5-4f22-20ed-f1c1febcbddd