fix diaspora reshare tags
Doco: Hidden configs - you won't believe what happens next!

Covered the P's, still need to do the X and just the configs.  Work in
progress, so not linked from the index yet.
+1
Unbreak webpages
Merge branch 'master' of https://github.com/friendica/red
Give Redbasic the -styled back
Also that doesn't work anymore - prettyPhoto relic
Fix webpages.  Sycning between too many codebases...
FFS, another oops
Show tag in siteinfo.  Not useful for us, quite useful for admins.
Some more previously undocumented configs.
Moved classes from reddav.php into own files.

Finished moving classes out from include/reddav.php into own files. Also
continued with namespace for RedDAV.
Improved some docs and added some todos and fixmes.