Merge branch 'tabs' into develop
Merge branch 'develop'
Add Current Tab with locations and address info.

Added a LocationService class responsible for fetching the location from
the latest location avaiable from either of the GPS radio or the Wi-Fi radio.
Added ReverseGeocodingService async task that reverse geocodes a given location
to an actual human-readable address.
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Merge branch 'current_tab' into develop
Merge branch 'develop'
Merge branch 'master' into develop
Fix a NRE
Merge branch 'hotfix_0.3.1'
Merge branch 'master' into develop