Fix show more post in my activity mobile page. Close #4108
added shift+enter key from new comment box to submit the comment.
added same feature to publisher
bump sidekiq
Merge pull request #4096 from RoonyH/3897-submit_a_comment_by_shift+enter

3897 submit a comment by shift+enter
Merge branch 'activity_more' of git://github.com/movilla/diaspora into movilla-activity_more

Conflicts:
	Changelog.md