show medium avatar in hovercard
Merge pull request #4203 from svbergerem/hovercard-medium-avatar

show medium avatar in hovercard
Fix Twitter crossposting (#2758). Refactor some service posting related code.
Merge pull request #4187 from jaywink/2758-twitter-crossposting

Fix Twitter crossposting by correctly calculating URL shortening
Don't show hovercards for current user in comments
Merge pull request #4195 from svbergerem/3999-no-hovercard-for-current-user

Don't show hovercards for current user in comments
replace mentions of out-of-aspect people in limited posts with just a
markdown link to their profile (fixes #2516)

add failing spec for #4160 / #2516

extend the spec a bit more

refactor mention handling in a status message

add method for filtering mentions by aspects

wire mention filtering into the status message model, adapt a few tests to
work properly

cosmetic changes

shorten helper methods

add changelog entry