Changed git submodule to use git instead of ssh
fixes firefox user image disappearance
take advice from @JohnONolan and subtract border-width
Merge pull request #1024 from dmyers/submodule

Changed git submodule to use git instead of ssh
README and CONTRIBUTING docs updates

- removed note about ssh
- added links to docs and forum
- added note about grunt prod
- more troubleshooting tips
Merge pull request #1090 from bnchdrff/user-image-ff-fix

fixes firefox user image disappearance
Fixed further firefox display bugs

See #1090
Add error handling to redirectToSignup promise

Fixes #1078
- Add an otherwise error callback to the redirectToSignup promise
Merge pull request #1108 from nason/signupErrorHandler

Add otherwise error callback to redirectToSignup promise. Fixes #1071