Rename `move_selected` to `split_topic` in German client translations.
Add missing German server translation for `autoclosed_disabled`.
Fix unix socket paths in nginx upstream module

Unix socket paths only require a single forward slash according to the
HttpUpstreamModule documentation: http://wiki.nginx.org/HttpUpstreamModule
Fix typo in the German missing logo warning.
Add the sidekiq-failures gem so that we can diagnose failed jobs
Add styling to 'Generate API Key' button
Include pinned topics in category list.

- removes an (n+1) query for user data
- supports the preload store for the data to avoid a second request
- fix a bug where uncategorizes was reporting (0, 0, 0) for topics by week, month, year
More German translations for the admin dashboard.
Remove last occurrence of `liken`, which isn't a German word at all.
Fix replying in a topic that is uncategorized after allow_uncategorized_topics is set to false
FIX: Issues that didn't show up originally
FIX: Missing `()` made notifications invisible
Merge pull request #913 from chrishunt/chrishunt/style-api-button

Add styling to 'Generate API Key' button
Merge pull request #912 from chrishunt/chrishunt/fix-nginx-config

Fix unix socket paths in nginx sample config
Merge pull request #911 from netzpirat/update-german-translations

Update german translations
FIX: Don't cast ids to ints, as user results have string ids.