[#97] Replace 'Next' with 'Done'

* Dismiss keyboard on focus lost
* Disallow 'Next' based navigation
[#97] Add ORDER BY STATUS criteria

* Saved > Exported > Synced priority
[#97] Hide 'failed' text if everything is ok
[#97] Remove 0.0 as default laatitude/longitude

* Allow null values
* Display records in the map only if a location is available
* Use ORDER BY DATE by default (location takes time to be ready)