Add a basic example app
Add a README to the basic example
Add the basic example to the index doc page
Rename basic app to simple app
Clean up example app test setup a little
Fix odd line break in doc index page
Fix bug in example app: initialise SimpleApp, not SomeApp
Merge branch 'develop' into feature/issue-135-add-simple-example-app
Merge branch 'feature/issue-135-add-simple-example-app' into develop