move code out of templates - not sure how this even worked.
session DNT - if you want it use it.
fix nl
visage tracking opt-in/opt-out
Merge https://github.com/friendica/red into pending_merge
some initial work towards email address verification
add 'block_public' checking to get_all_perms() and perm_is_allowed() so we have everything related to allowing or denying something in one place. Currently this check is done separately in a huge number of places. Now we can start to remove all the extra checks. A couple of them are still necessary, but most are now redundant.