Update client.it.yml to have category section

As outlined in this question:
http://meta.discourse.org/t/all-categories-on-non-english-sites/11417
Automatically convert some quotes to blockquotes
Show topic and post counts by day/week/month/year on categories page
Merge pull request #1735 from piac/patch-2

Update client.it.yml to have category section
Fix topics_year, topics_month, topics_week for uncategorized category
Only 1 complicated git dependency left
redis rails no longer sourced from github, was only used due to a rack cache bug which is no longer used
spork rails now sourced from gem
add more info to rss feeds
Don't show "uncategorized" if allow_uncategorized_topics is false.
Merge pull request #1738 from alxndr/rss-tweaks

add more info to rss feeds
Updated Swedish client translations
added quick start guide to seeds
don't seed welcome topic in test db
Good luck getting this updated everywhere, kicking myself really hard for allowing these stupid sample files
see: http://meta.discourse.org/t/enough-with-the-sample-files/10351

Our default sample setup was not minifying css or js causing js and css to be 2.5x larger than it needed

Anyone using my docker setup, please run a new bootstrap. Anyone else, apply diff manually.
FIX: S3 upload when using dots in bucket name
revision history: proper word-wrap in markdown view
revision history: no hover state on buttons when disabled
add discourse_diff tests
add onpdiff tests