Merge pull request #3 from NHSChoices/release/alpha

Get the basic stuff into master
Merge pull request #5 from NHSChoices/release/alpha

Merge in coveralls fix
Merge branch 'release/alpha'
:hatched_chick: Continuous deployment to heroku
gitignore
sign up email tests
Merge pull request #2 from sarahcarney/test/email-signup

Test/email signup