Honor email_always even if notification has been read

Even if the notification has been read, send it by email if user has enabled email_always
Added test to ensure email is sent to users with email_always set even if the notification has been read
Corrected typo, corrected accidental tab, removed unnecessary database rollback

Corrected it "do send" to it "does send"
Removed unnecessary user.update_column (rollback happens automatically)
Replaced Tab with spaces.
Allow a sepearate mobile logo URL
Forgot translation for description
Update Translations
Merge pull request #2456 from techAPJ/update-translations-5

Update Translations
Version bump to v0.9.9.10
FIX: clearfix at bottom of customize/colors UI
ES6: A few more views
handful of alignment fixes
Merge pull request #2454 from riking/mobile-logo

Allow a sepearate mobile logo URL
Merge pull request #2457 from awesomerobot/master

handful of alignment fixes
default email from info@unconfigured.discourse.org
FIX: show 404 page for links to categories that don't exists or you don't have access to, instead of showing blank page with js errors
TWEAK: Don't focus on progress expansion on touch interfaces.
We don't need an empty app-events file.
TRIVIAL: Remove some output from qunit test suite.
remove serif fallback for mobile pre/code blocks
remove serif fallback from code,pre

this was about an ancient Safari / WebKit bug as I recall
https://www.webkit.org/blog/67/strange-medium/