refine dns proxy
refine local dns resolve
add geoip
refine dnsproxy
refine GeoIP.dat path
Merge branch '3.0' of https://github.com/goagent/goagent into 3.0
refine dnsproxy
refine dnsproxy
refine win32_dns
refine dnsproxy
refine dnsproxy
refine connection window
refine gevent win32 error handling
refine dnsproxy
bugfix for dns_remote_resolve
bugfix for proxy.pac
refine uptime check
Merge branch '3.0' of https://github.com/goagent/goagent into 3.0