Didn't fork before, made a clone so submitting challenge in one commit

[sjtinsley]

Your name

Simon Tinsley
Please write your full name here to make it easier to find your pull request.

User stories

Please list which user stories you've implemented (delete the ones that don't apply).

• User story 1: "I want to instruct a plane to land at an airport"
• User story 2: "I want to instruct a plane to take off from an airport and confirm that it is no longer in the airport"
• User story 3: "I want to prevent landing when the airport is full"
• User story 4: "I would like a default airport capacity that can be overridden as appropriate"
• User story 5: "I want to prevent takeoff when weather is stormy"
• User story 6: "I want to prevent landing when weather is stormy"

README checklist

Does your README contains instructions for

• how to install,
• how to run,
• and how to test your code?

(Sorry, didn't spend time on the README - trying to get the code to work and deadline has hit. Will work on this on next week's challenge)

Here is a pill that can help you write a great README!