Add low priority list to socket send buffer
simplify send_buffer
Merge pull request #87 from cloudwu/priority

Add low priority list to send buffer
fixnetpack

不一定两次读完。没有读完的时候把uc放回queue。
snax : a simple skynet auxliliary framework
hotfix snax supported
use a patch to hotfix
queue mode
no return value for exit()
1.add lua-netpack filter  ignore tgw header
Merge branch 'master' into chat
1.clientsocket raw send (remove size head, for tgw)

ref: http://wiki.open.qq.com/wiki/TGW%E6%8E%A5%E5%85%A5%E8%AF%B4%E6%98%8E
Merge pull request #89 from cloudwu/snax

snax :  : a simple skynet auxliliary framework
Merge pull request #88 from wsk3201/fixnetpack

bugfix: netpack
Merge branch 'master' into chat