fixed the bug: when nginx is reloaded, work_process cann't exit for l… …ong time

update readme 

Merge pull request weibocom#81 from CallMeFoxie/etcdfix3 Fix ETCD index expiration and reintroduce waitIndex

the warning is a error that "status" is not initialized in max os: fixed 

update upsync_dump_path default 

abandon dependent on check_index(check_module) if deleting backend se… …rver

Merge pull request weibocom#7 from weibocom/optimizing_branch Optimizing branch

parsing json key-value check key-format if meeting : format and updat… …e readme

updating README.md for adjusting-weight function