Add 'no contacts in this aspect yet' message

Fix frontend regressions

Fix for 5745 - conversation pagination design is broken

center pagination

Fix pagination css

Symbols for previous and next

	modified:   app/assets/stylesheets/conversations.scss
	modified:   app/views/conversations/index.haml

Add responsive pagination

Fix broken pagination

	modified:   app/assets/stylesheets/conversations.scss
	modified:   app/views/conversations/index.haml

Fix broken pagination for mobile

Mobile pagination

Unify desktop and mobile background

change background color

Remove footer from stream and profile pages

Update markdown-it

Replace Make Something text by the diaspora ball logo on registration page

Add ball.svg to /graphics

database_rewinder seems to cause deadlocks in postgres and other
subtle bugs for us.

Update gems

Also make sure comments_count and the like is always set in the
response.