* Issue 4960: Ignoring and blocking of contacts should work again
* Renamed functions
* This function should be renamed as well.
* We now have a frontend to block and ignore public contacts
* Hide some parts for public contacts
* Removed notices, public contact is now accessible from dirfind as well
* We now show contact conversations and contact posts
* We now use a new conversation mode
* The update functionality is disabled until it will work completely
* Fixing tabs chaos
* Update after posts on the contacts page will now work
* Show connect link
* Rewrite:
- stopped using deprecated NETWORK_* constants, now Protocol::* should be used
- still left them intact for slow/lazy developers ...
* Removed deprecated NETWORK_* constants as per code reviewer's request.
