Remove useless query from the homepage

Not really that important, but this page does get hit alot and the
query was not used at all.

Also removed template code that was outside a block tag, so wasn't
getting used either.
Avoiding redirection of the page loaded inside the iframe should resolve the issue https being redirected to http, so finally fix the issue of embedder loaded in an https site
Cleaner fix for redirect issue
Update ssl handling and building docker images

Update our django-sslserver version.  The new version makes it so we
don't need our hack to serve static files.  Fixed misspelling in the
fig ssl_app.

Use --no-cache when building our dev image.  I saw the same issue that
janet saw where we would get 404 errors when fetching .deb packages.
I'm pretty sure this happens because we cache the apt-get update
command.
Allow views to override the editor title
updated video thumbnail
adding some selenium tests for titles
Merge pull request #1812 from pculture/gh-1811

updated video thumbnail
Merge pull request #1808 from pculture/editor-title-override

Allow views to override the editor title
Merge pull request #1809 from pculture/gh-1719

Gh 1719
Merge pull request #1805 from pculture/speedup-frontpage

Remove useless query from the homepage
update repo refs
some selenium test udpates
Merge branch 'staging' into gh-1807