Adds welcome message on registration Welcome message is only send out if podmin account is defined and welcome message is enabled in the config.

This also enables the podmin account to send messages
to any local user.

closes #6128

closes #6118

closes #6117

closes #6111

That is, if it's the first element in the post

closes #6110

This fixes CVE-2015-3226, CVE-2015-3227, CVE-2015-1840 and CVE-2015-3225

regression from #6005

closes #6105

closes #6091

by default both are disabled now, you can enable them in the
diaspora.yml if you need them.

closes #6090

this is not included in 0.5.1.0.

[ci skip]

closes #6085

[ci skip]

closes #6082

closes #6083

refactoring:
- remove unused return-values (were used for caching, which was removed again)
- remove transaction (doesn't help here, added in 26151263)

closes #6068

closes #6060

closes #6079

Fixes #6067

closes #6041

closes #6022

Facebook deprecated their v1.0 API and thus the old ones no longer work (for new authorizations).

closes #6019 [ci skip]

closes #6014

and cleanup the code so it follows the code guidelines

closes #5955

closes #6028

closes #6020

The <hr> tag in the markdown-content was #eee,
and thus almost invisible. It has been changed to
$border-gray (currently #ddd) to be consistent
with the other <hr> tags.

Adjust markdown-content hr style further

The hr tag is now centered at 85% width. It also
adds a default vertical margin that is equivalent
to the 0.8em the paragraph tags provide.

Refactor scss for markdown-content hr

Closes #6016

closes #6013

closes #6009

closes #6007

closes #6005

- move mobile icons to mobile-folder, so they aren't included in the
  icons-sprite
- move logos to branding/logos, and create a logos-sprite without the
  big other branding-images
- delete duplicate images

closes #6004

Remove unnecessary initializer and comments in Gemfile and add explicit rubyzip gem version in Gemfile with description

closes #6001

closes #5991

closes #5994

closes #5989

closes #5988

Since the Facebook API has changed and additional permissions are required for all users on a pod to cross-post, an additional 'authorized' flag is needed to be set for the Facebook service.
This flag allows either all users, one user or no users to use the cross-posting service.

Clarifies the situation for #5923, #5260 and #5085.

closes #5985

closes #5986

closes #5983