fixes #7840

closes #7884

closes #7769

fixes #7727

closes #7119

closes #7091

closes #7064

closes #7064

* Adds a new metadata helper and methods to PostPresenter to have metas on post pages.

* Adds tests to post controller to check correctness of metas

* Add methods to PersonPresenter to have metas on profile pages

* Correct meta data helper test

* Update PersonPresenter, add test to PeopleController

* Creates TagPresenter. Display tag metas on tag index page

* Updata meta data helper spec

* Not displaying bio as the description meta on profile page for now. Privacy concerns to be cleared.

* Set meta info as hashes in presenters

* Move original hardcoded metas info to config/defaults.yml

* metas_tags include by default the general metas, update views

* Update code style, clean views

* Renames TagPresenter StreamTagPresenter, updates TagController spec

* Add a default_metas entry to diaspora.yml.example

* Align metas hash in presenters, refactor meta data helper

* Use bio as description meta if user has a public profile

* Rename StreamTagPresenter to TagStreamPresenter

Updates introduce support for preloading contacts to Gon in order
to support client-side rendering of aspect membership dropdown box.

in order to support adding new aspect to a dropdown without full
page reload

closes #6851

Fix class assignment in the mobile view of profile page. Add a
cuke testing the "liking from the profile view" feature.

closes #6505

closes #6503

closes #6243

Update add contact page

BS3

Fix syntax