timeout more quickly
add remove_ca function(not completed).
refine remove_ca method
remove default CA
Update addto-startup.py

fix empty working directory in OSX
Merge pull request #56 from zfdang/3.0

Update addto-startup.py: fix empty working directory in OSX
merged
random sni
refine timeout for iplist
revert back timeout
update ssl
refine pac
merged
merged with origin