fix CeoIP.dat path error
Merge pull request #5 from binyuj/fixpath

fix CeoIP.dat path error
bugfix for crlf
add AdvancedProxyHandler
refine AdvancedProxyHandler
add ProxyChainMixin
refine AdvancedProxyHandler
bugfix for AdvancedProxyHandler
add GAEProxyHandler2
add SimpleProxyHandlerFilter
refine SimpleProxyHandlerFilter
refine SimpleProxyHandlerFilter
add ForceHttpsFilter/GAEFetchFilter
add DirectRegionFilter
add WithGAEFilter/FakeHttpsFilter
refine SimpleProxyHandler
add HostsFilter placeholder
refine HostsFilter
Merge branch '3.0' of https://github.com/goagent/goagent into 3.0