Support youtu.be style URLs
#964 - Follow-up

Ensure something follows youtu.be/
Expanded tests for short youtube url
pin nodemailer version at 0.7.1
Merge pull request #969 from stuartf/pinNodemailer

pin nodemailer version at 0.7.1
Merge branch 'youtube-short-urls' of https://github.com/simong/Hilary into youtube-short-urls
Merge branch 'master' of https://github.com/oaeproject/Hilary into youtube-short-urls