Firstly, promisify mailer() so we can turn it from sync to async
Fetch all localised templates from the fxa-content-server and use them
No need to pass i18n to mailer anymore
Remove email templates since now fetch from fxa-content-server
Pass email to the templating for substitution
Add content templates to the mail_helper.js to serve for us when testing
Use our own fake content server when testing
Add separate config files for various tests for local template server
Add a script to fetch all the current templates from a local fxa-content-server
Add a templateServer config item
First dump of templates
Read local templates first, then fetch remote ones
Make sure all tests pass by defining where the template server is
Remove win32
Merge pull request #567 from chilts/issue-155-fetch-templates-from-content-server

Issue 155 fetch templates from content server