onion_isconnected fix attempt.

Try to make it more stable.
Use same jbuf size for group as for one on one chats.

Use define instead of constant.
Merge branch 'master' into debian/unstable
prepare for release

Signed-off-by: Kill Your TV <killyourtv@i2pmail.org>
Merge tag 'debian/0.0.0+20141228.r3055-1' into ubuntu/trusty

toxcore Debian release 0.0.0+20141228.r3055-1
prepare for release

Signed-off-by: Kill Your TV <killyourtv@i2pmail.org>