sip listing and adding a new sip domain
all sip endpoints implemented - golint not run yet
style changes
adding next method to domain list
Merge branch 'master' of https://github.com/natebrennand/twilio-go into sip
Merge branch 'master' of https://github.com/natebrennand/twilio-go into sip
sip now included in account
conslidate many fields into ResponseCore2

open to renaming it to something else
adding fixtures test
Merge branch 'struct_consolidation' of https://github.com/natebrennand/twilio-go into struct_consolidation
renaming to ResourceInfo
Merge branch 'struct_consolidation' of https://github.com/natebrennand/twilio-go into struct_consolidation
consolidating into ResourceInfo
:volcano: make travis fail on golint errors :volcano:
fixing golint issues
Merge branch 'struct_consolidation' of https://github.com/natebrennand/twilio-go into struct_consolidation
Merge branch 'conferernce_tests' of https://github.com/natebrennand/twilio-go into conferernce_tests
adding filter for participant list