FEATURE: Allow manual excerpt to be specified anywhere in the post and override max excerpt length
UX: Add g, t keyboard shortcut to modal window for go to top
https://meta.discourse.org/t/add-shortcut-g-t-to-go-to-top-page/19586
UX: Filter for "Reply key" was not translatable in Transifex

Empty strings are not translatable in Transifex.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
FIX: clicking the 'edit permission' button would close the category modal
FIX: clicking a button that disappears in a modal would close the modal (take 2)
FIX: N+1 query on /categories page
simplify notification level copy a bit
FEATURE: new 'prevent anons from download files' site setting
Don't set content-disposition header for images

If this header is set for images, clicking the image link causes them to automatically download the file, rather than viewing it inside the browser. This commit forces this behavior only for uploads that aren't images
FIX: 'disable_edit_notifications' will only disable revisions made by the system user
Revert "FIX: unread/new counts out of sync with tabs"

This reverts commit c093187d342c920d8f411b511ee759cca002a856.
FIX: Only use cached topic lists on popState
Merge pull request #2772 from mkayman/s3_store_content_disposition

Don't set content-disposition header for images
Merge pull request #2768 from gschlager/i18n_fix06

UX: Filter for "Reply key" was not translatable in Transifex
TRIVIAL: improve display of the rebake task
Handlebars structure tweaks to post.handlebars

 - Combine bind-attrs on the <article> (seriously that made no sense)
 - Hoist a bind-attr class to the view, allowing more fancy styling
 - Hoist a <div> outside a conditional
 - Change href='#' to unvalued hrefs
FIX: allow staff members to restore withdrawn posts that are flagged
changing the header now that fullname was dropped