Merge branch '3.0' of https://github.com/goagent/goagent into 3.0

Conflicts:
	server/gae/gae.py
move win32 packages to packages.egg
upgrade to python 2.7.8
Update proxy.ini
refine URLRewriteFilter
refine dropbox rule
refine create_tcp_connection/create_ssl_connection
refine strip plugin
use RC4-SHA for gae handler
Update proxylib.py
refine switchy options
refine ipv6 profile
refine proxy.ini
begin work for youtube stop
refine timeout for rangefetch
refine rangefetch
add multi autoproxy rule
refine rangefetch
refine rangefetch
refine proxy.sh