Use daemon threads by default
Merge pull request #2 from polyrabbit/3.0

Use daemon threads by default
drop pacparser
add direct connect region
refine gae regions
refine gae regions
bugfix for gae region
bugfix for region
refine adblock pac handler
option auto switch ipv4/ivp6
refine proxy.pac
add SimpleProxyHandler for goagent 3.2
refine SimpleProxyHandler
refine SimpleProxyHandler
refine SimpleHTTPServer
port pacserver to SimpleProxyHandler
Merge branch '3.0' of https://github.com/goagent/goagent into 3.0