cluster support
single node mode
daemon mode
add pidfile for daemon
don't unlock pidfile after write pid
daemon is deprecarted in macosx
bugfix: check globalmq push is complete
remove unused mq api
Merge branch 'master' into dev
optimize message dispatch
Merge branch 'dev' of github.com:cloudwu/skynet into dev
use jemalloc release 3.6.0
optimize timer
bson : check string length
Merge pull request #116 from cloudwu/dev

merge dev version
update history
turn off memory hook in freeBSD
invalid length may nagtive
bugfix: in freebsd, libthr may call calloc before globalinit
Merge pull request #2 from cloudwu/master

20140609