allow multiple different operations to consume from the same upstream operation
interface
Convention: method names start with lower case
get email from flow config
Merge branch 'ben/hipchat' of github.com:zillabyte/motherbrain into ben/hipchat
rm interface file
add email into flow config path
get url
Merge pull request #33 from zillabyte/ben/hipchat

@benjaminchan, @qiongyu -- helper modifications
Merge branch 'master' of github.com:zillabyte/motherbrain