Replacing urllib2 with httpt.HTTPTest for captiveportal test
Construt TrueHeaders using string parameter
s/threads/defereds/
removed unnecessary import
Support for performing NS lookup in ooni.templates.DNST
Make get_auth_nameservers use ooni.templates.DNST
Support for using system dns setting for performALookup in
ooni.templates.DNST
Replaced dnspython with ooni.templates.dnst for performing A Lookups in
Captiveportal test
Removed unnecessary print
Support for performing SOA Lookup in ooni.templates.DNST
Replaced dnspython with ooni.templates.dnst for performing SOA Lookup in
Captiveportal test
Removed unnecessary import