Add a white background to images shown in the lightbox
Fixes issue #4475
Add a white background to the images shown in the navigation bar of the lightbox
Add a white background to ALL the images in the navigation bar of the lightbox
Change .timeago color and align notification, fix #4502
Add link to the faq in the right panel
Fix #4078 by refactoring 404.html

I moved 404 to the assets to avoid loading font and images from joindiaspora.

 #- Can I move the design to a 404-style.css file which will be in the public repository too ?
 #- This pull request proposes to insert the two font files and the cat image, do you agree ? Depend of amazon seems really bad for me.
fixing commenting

Added jamisne tests for comments

Added 2 jasmine tests for fixing commenting

Bugfix: #4005 added changelog entry
cleanup jasmine tests
and added changelog entry for bugfix #4005
Merge branch 'PallaviTS-fix-commenting' into develop
Merge pull request #4522 from fubik/transparent_background

Add a white background to images displayed in the lightbox

Conflicts:
	Changelog.md
Merge pull request #4529 from Flaburgan/fix-timeago-color

Change .timeago color and align notification, fix #4502
Merge pull request #4532 from Flaburgan/add-help-link

Add help link
Merge pull request #4079 from Flaburgan/patch-3

Fix #4078 by refactoring 404.html
bump ruby-oembed