Add followed tags to the mobile menu

Conflicts:
	Changelog.md

Add currency setting to paypal donation and allow unhosted button setting

Conflicts:
	Changelog.md

Replace %{third_party_tools} by the appropriate hyperlink in tags FAQ

Remove limited content from email notifications

Handle reshares of deleted posts in OpenGraph tags generation code

Solve #5348

Remove unused stream template

Set refresh_search async searchresults load to use bootstrap
Fix #5240

Fixed growing number on events on hovercard dropdown container

Changed delete conversation button tooltip

Improve wording for tagged people on tag page

Feature/json exporter

Destroy conversation when all participants leave it

Fix order of poll answers

That causes a cyclic dependency on spring being
loaded otherwise.

BUG: new messages to person that is not sharing

Conversation recipient validated

- Conversation foreign recipient not required to be validated.
- Added 'peter' as spec_helper user.
- New fixture, new statistic values.

- Clearer identifier names

That normalizes any extra / on the base URL.

URI.extract recognized http:// as an URL, causing invalid
associations. #5347 already fixed the parsing, this just
cleans up the caches to get rid of the false associations.