bump Typhoeus and refactor HydraWrapper
Changed post/comment submit keyboard shortcut to ctrl+enter from shift+enter

Fixes reopened #3897
Fix icons-deletelabel styles
Merge pull request #4186 from marpo60/fix_issue_4180_deletelabel_after_sprites

Fix icons-deletelabel styles
remove ["a", "b", "C"] from the void of nothingness [wtf]
Add back-to-top button on tag and user pages
Merge pull request #4191 from svbergerem/4185-BackToTop-other-streams

Add back-to-top button on tag and user pages
Add participants preview con conversations
fix stupid heredoc usage in script/server
Merge pull request #4162 from MrZYX/typhoeus

bump Typhoeus and refactor HydraWrapper
Merge branch 'reoponed_issue3897' of https://github.com/RoonyH/diaspora into RoonyH-reoponed_issue3897
Merge branch 'add_conv_participants_preview' of https://github.com/marpo60/diaspora into marpo60-add_conv_participants_preview
use tooltip plugin to display the name under the avatar

(temporary solution until the proposed solution from the
[pull request](https://github.com/diaspora/diaspora/pull/4149) is
implemented)
bump configurate
fix failing conversations cuke
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.
Although Twitter post length and truncation calculation has been made as accurate as possible, sometimes for some weird reason we get a 'Too long' forbidden error which I cannot explain. This commit adds a retry for Twitter posting which decreases the amount of max characters per retry up to 19 chars until it finally fails with error