3.1 Request / Create CKAN Instance (Potential Instance Admin)

[rossjones]

As a (potential) Instance Admin who wants a new CKAN site I want to have a 
simple web-based interface for requesting a new instance (and having instance 
rapidly booted in response) so that I have a new CKAN site quickly and easily

Notes
* Simple form where you can fill in your details (e.g. Name, Org, Email, Password)
* Notified in response to submission and/or by email (soon after) that new 
  instance is ready and here is the url
* Go to that instance and go through any next steps (cf US#1.4)
   a. Note US#1.4 could be less relevant if relevant info captured in form here and 
      used in booting the instance ...
* User experience should be excellent (as simple and easy to use as possibly but 
  no simpler!)
* Instance should be booted automatically (suggest using the library / scripts 
   produced re US 2.2)
   a. Simpler option (less preferred) is email to Cloud Admin who takes some 
       action (see next US 3.2)

[wardi]

We'll implement this after we get the basic version up and running. I've created an issue: datacats/ckan-multisite#7