Closes#2410
- Add signup action that posts to signup endpoint
- Fix nav bar showing on signup page
- Fix image link when a user hasn't set their image yet
- Redirect to the ember/signin page if requesting an ember page
no issue
- this ports over screens from old admin to
allow people to begin working on aspects of the screen
- All logged out screens have been imported: Signup, Signin,
Forgotten password, reset password
- Those screens are now ready for behavior to be ported over
- This also updates templates to be more in line with how they were
in the old admin
- Littered through the code are @TODO comments of functionality that is
missing and will need to be resolved before this is production ready
- Also scaffolds out the settings screen and every tab
