Added an unfinished doc on how groupchats work.
Cut bitrate by half for 1 channel audio.
av refactor
Decrease time to announce ourselves to 3 seconds.
Small update to groupchat docs.
get peer pubkey api
Fixed small issue where group audio would jumble up sometimes at start of stream.
Tox clients now should show they are offline with much better precision.
Merge branch 'peerpk' of https://github.com/dubslow/toxcore
Cleaned up packet length types in toxcore.

They are now all uint16_t instead of sometimes being uint32_t.

Replaced some other uint32_t with unsigned ints.
Enable use of lower sample rates for group chats.
Updated TODO.
Removed some no longer promising clients from the TODO.
Merge branch 'master' of https://github.com/mannol/toxcore
Fixed possible issue.
Astyle autotests.
Fixed integer rollover bug in toxav.
Fixed threading issues in toxcore.
Fixed some fatal spelling mistakes
Forgot to replace this