remove user page mini-avatar wrappers
Add ImageMagick to mac install instructions
Merge remote-tracking branch 'upstream/master' into update-mac-doc
lighter admin setting description color
Add ImageMagick and a couple other notes to docs

Had to re-number the list.
Merge pull request #2397 from adamloving/update-mac-doc

Add ImageMagick to mac install instructions
Merge pull request #2399 from adamloving/add-image-magick

Add ImageMagick and a couple other notes to advanced developer doc
de-emphasize topic map headers a bit
duplicate color definition
add location field to user card expansion
dim the poster expansion right h3s
better signal on empty category desc
SECURITY: TopicView not correctly restricting to topic