feed titles now prefixed with SiteSetting.title
feed titles get translations of "Topics"
RSS title element is SiteSetting.title + translated filter description
Add regular notification level into topic_view_serializer for the user who enter the new topic
Add scripts that automate the where(...).first to find_by(...)refactoring.
Perform the where(...).first to find_by(...) refactoring.

This refactoring was automated using the command: bundle exec "ruby refactorings/where_dot_first_to_find_by/app.rb"
Remove scripts that automate the where(...).first to find_by(...)refactoring.

This reverts commit f1369e4503256fde9854a0c2f310bc824a3ee9f2.
Force Travis to run tests.
fix inconsistency with bookmark icon label under post

the bookmark icon under post should follow style from other
icons - downcased, no ending dot
Slightly improve header accessibility.

Partially addresses: https://meta.discourse.org/t/links-without-text-make-blind-user-accessibility-worse/13538.
Remove extra anon glyphs, move sign in button.

See: https://meta.discourse.org/t/add-sign-in-to-anonymous-header/15335
Use helper to insert sr-only text for icons.
Use topic excerpts and category desriptions in meta description tags for crawlers
Roll up gutter links, don't show reply as new topic unless expanded.
BUGFIX: the /top page now shows the first non-empty period
BUGFIX: make sure we do not try to pull images from the CDN
minor user(and group) page fixes
Merge pull request #2321 from awesomerobot/master

minor user(and group) page fixes
Update Rails to 4.0.5
Merge pull request #2320 from shime/master

fix inconsistency with bookmark icon label under post