Add tab order for login form (fix #100)
Replace circular screenshots with fake-machine ones.
Tweak font sizes and grid placement for mobiles and tablets.
Design a friendlier 500 error page.
Use non-rails-pipeline assets for 500 error page.
Merge pull request #101 from sarahsemark/better-launch-page

Better launch page
Add invite gem and restrict signups
Add invitations (fix #77)

Adds an invite system for only admin users (bob@mynameisbob.com
for now) to use. Send an invite via /invite as an admin; accept
one from /use-invite?INVITE_TOKEN.

Currently creates a user account based on email used to sign up.

When you use your invite, it simply asks for you to set a password
then signs up you. See `views/devise/invitations/edit.html.erb` to
customize that template.

After account creation you're sent to the dashboard, just like a
regular sign up.

Regular sign up is removed, as is Facebook/Twitter sign up/login
until invites are out.
Add basic styling and text to invitation forms.
We're using Rails 4.1 these days...
Use names for invites, write some friendly text, and show email address.
Merge pull request #98 from sarahsemark/invites

Add invite gem and restrict signups
Restrict progress bar to 100%. Solves #103.
Add a prettied-up user settings page and move logout button back to dashboard.