Various: update translations from pootle.lm.org

These are all languages active since last POT file creation
Various: update PO files

None of these languages have been active, but update them
to the POT file for 31 Dec 2012
Update to latest Pootle templates
No need for range here.

Fixes bug 2726.
Added a new "My overwritten submissions" filter.
Change to lazy Gettext calls

Fixes bug #2735
Fix URL to mailing list
Add new strings

Also recover .conf strings that disappeared.
Clear existing assets before collectstatic

We had some issues where these weren't updated. So it generally makes sense to
completely clear these and recreate them from scratch.
Add start copyright date for various POT files
Correct English for HTML activation email

Fortunately no string freeze break as the correct string already appears in the
text version.
Fix messages
Various: updated translations

Updated against templates plus, a number of languages at 100%
Update languages against templates

Ran update_against_templates on server these are the results
Use actual select elements for dropdowns.

This avoids some weird behaviours with the select2 plugin.

Fixes bugs 2732 and 2733.
Expand search options when the search box is focused.

Fixes bug 2730.
Don't remember search fields if accessing from an arbitrary URL.

Fixes bug 2731.
Don't use img tags for sorttable icons.

Avoids strange artifacts in WebKit browsers:
http://stackoverflow.com/questions/5743083/strange-border-on-img-tag

Fixes bug 2268.
Check for the data attribute.
Comparison correctness.