fix issue #171
bugfix: wakeup sleep coroutine should return BREAK
bugfix: sharedatad load name
set _ENV to metatable when shadredatad read file
Merge pull request #173 from cloudwu/dev

Dev
release 0.7.1
Merge pull request #2 from cloudwu/master

cloudwu 0.7.1
Merge pull request #3 from xavidu/dev

cloudwu 0.7.1