[#84]Move all strings from Java code to strings.xml
[#17]Give helpful err message early if disconnected
[#84]Move strings from layouts to strings.xml and rename some for
consistency
[#84]Start on Swedish translation to test concept
[#84]More swedish translation
[#84]Finish Swedish translation. Eliminate redundant strings. Rename
some strings for consistency.
Merge pull request #113 from akvo/feature/84_move_strings_to_res_file

Feature/84 move strings to res file