Remove messages which have been copied from english
Update to rails 3.2.11
Localisation updates from http://translatewiki.net.
Site cleanup

I set out to do a quick and dirty typography overhaul to make things
more consistent and a bit cleaner, but I kept running into things I
didn't like, so this lead me down something of a rabbit hole of design
tweaks to the OSM site.

Goals here are to have better content hierarchy, better vertical
rhythm, more consistent UI, cleaner markup with less tables, all while
keeping the basics pretty much intact. There are a lot of things I
didn't touch even though they need to be updated (lots of tables where
stuff shouldn't be tables, mostly).

Basic overview of changes:

I added a new persistent header that helps segment pages. It's now
a lot easier to know what you're looking at. The header has a page
title, a description, plus a submenu of actions.

There is now a pattern of 20px/10px margins and padding for more
rhythm and breathing room throughout the site.

I know there are other problems here or things I've missed - would
love another set of eyes to look over this! I am still getting comfortable
working on the site - it's my first time ever digging into a ruby or rails
so I'm not familiar with the templating language yet.
Disable caching of pages with dynamic layout

Pages now feed back into the layout to set the content of the heading
block so we can't cache any page which has a layout as that would mean
the heading wouldn't appear when the cached page was used.
Update tests for layout changes
Update data schema
Display trace descriptions properly
Avoid wrapping an <li> in a <span>
Make user markers display correctly

Instead of putting the data on a bogus <td> element that will be deleted
by the browser, put it on the <div> wrapper instead.
Fixup test failure
Remove messages which have been copied from english
Cleanup followup

Tighter copy on node list for to decrease the chance of an ugly line
break (need better fix here so the line break is smoother). Just changed
also part of way %{related_ways} to part of way %{related_ways}. This
needs a better fix to make line breaks indent properly, but this should
at least help a little (issue #185).

Properly positioned 'nearby users' block on user page to be in the left
column (issue #184).

Removed deemphasized class from search results (issue #181) lighter
highlight yellow on changesets page.
Highlight the history tab correctly
Fix formatting of redaction messages on browse history pages
Mark hide rules as important
Remove style rules that are no longer needed
Update to Leaflet 0.5
Improve testing of the trace list view
Fix formating of way and relation redaction messages as well