Geofences that change location update frequency

[GoogleCodeExporter]

I'm developing Glassware that subscribes to location updates, but if a user is 
staying in a relatively small area, I will generally be ignoring the updates 
until they have moved a minimum amount (~1 mile). I would love to be able to be 
able to set (and potentially, tweak later) the minimum distance between 
updates. This would minimize what my app will have to process as well as cut 
down on traffic between it and the Mirror servers.

As this would need to be somewhat flexible as my glassware evolves, I would 
also need the ability to update that threshold for each of my users.

Original issue reported on code.google.com by [email protected] on 23 May 2013 at 1:53