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

Ensure something follows youtu.be/
Expanded tests for short youtube url
#954 - Refresh authentication strategies on tenant updates
Merge pull request #954 from simong/954-refresh-tenants

Changing tenant host does not refresh authentication provider configurations that are dependent on tenant host
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
(Issue 970) Do not update discussion library if discussion timestamp was not updated
(Issue 970) Don't allow library index updates that result in accidental deletions
(Issue 970) Add comment to new test
(Issue 970) Only touch discussion on share if it is within the update threshold
Merge branch 'issue-970' of github.com:mrvisser/Hilary into issue-970

Conflicts:
	node_modules/oae-discussions/lib/api.discussions.js