Retrieve and show image location in detail view
Use grid's item click listener instead of each grid item's click listener

Fixes the problems with the first item being selected by default and not receiving click
events until moving into touch mode.
Listen to location and add option to filter results close to current location
Update application theme

Use a more "modern" theme, visible especially on the checkbox.
Remove unused template files.
Change search bar background to dark.

Otherwise white checkbox wasn't visible anymore.