Decreased Tox idle bandwidth usage but potentially increased time to
find friends (needs some real world testing).
This might fix some peer finding issues.
Added some comments to net_crypto.h
Merge branch 'master' into debian/unstable
prepare for release

Signed-off-by: Kill Your TV <killyourtv@i2pmail.org>
Merge tag 'debian/0.0.0+20141103.r2908-1' into ubuntu/trusty

toxcore Debian release 0.0.0+20141103.r2908-1
prepare for release

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