As a visitor I can register new team

[Igor Romanov]

Create a sign-up form with:

• Team name
• User's email
• Password

When submitted:

1. Show a static page with "Please check your email and confirm eamil address"
2. Create a new Team
3. Create a new user and make him Admin for newly created Team
4. Mark user as not verified
5. Create a verification token and a link for user to confirm email address
6. Send email to user via SendGrid or MailGun with verification link in it

When user click on verification link:

1. Check that user with such verification token exists
2. Mark user as verified
3. Show "Thank you for verifying email address" and a link to Login page