Tweaked README.
Fixed crash with invalid group invite numbers.
Merge branch 'master' into debian/unstable
prepare for release

Signed-off-by: Kill Your TV <killyourtv@i2pmail.org>
Added proxy options.
Added validation of proxy_address option.
Pass proxy options when creating Tox object.
Implemented proxy capabilities.
Renamed some options.
README update; we now support proxies.
Tweaked config code.
Added /tox reload command.
Updated /tox documentation.
Moved profile_default option array to profile.{h,c}.
Actually care about max_friend_requests.
Fixed bug in twc_match_friend.
Added -force flag to /friend add.
Fixed /friend accept|decline documentation.
Added option for enabling/disabling IPv6.
Formatting.