Expose extra map helper to query users nearby.

Refactor getSpeechBubbleMarkerOptions() so it will actually accept LatLng coordinates too.

Exclude blank names too.  Shows up funny on Google Maps.

Expose extra map helper to query users nearby.

Refactor getSpeechBubbleMarkerOptions() so it will actually accept LatLng coordinates too.

Exclude blank names too.  Shows up funny on Google Maps.

Set constant for max query items.

more formatting for readability of MapUtil

Relocate to User object.
Merge pull request #62 from rogerhu/geo_query_helper

Expose extra map helper to query users nearby.