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()
Merge pull request #89 from cloudwu/snax

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

bugfix: netpack
fix typo
delete unused feature : group/localcast/forward, etc
check callback return value for reserve the message
Merge pull request #90 from cloudwu/simplify

Simplify
add submodules jemalloc
malloc hook for jemalloc and c memory info dump
bugfix: use memcpy for unalign memory
detect JEMALLOC_OVERRIDE_MEMALIGN
add git submoudle update to makefile