Luci-app-usteer: Cosmetic updates, error checking added, and refresh …

…of status page

Removed save/apply button on status pages, and added "friendly" error message if usteer not running
Added refresh of status page
Code style improvements by Sergey Ponomarev <stokito@gmail.com>

Signed-off-by: Ramon Van Gorkom <Ramon00c00@gmail.com>

Add the template pot file that is needed to start translating the app.

Signed-off-by: Miguel Angel Mulero Martinez <migmul@gmail.com>