Removed useless initialisations
Refactored class and xml layout names
Layout change

Lots of refactoring
Removed extraneous layout files.
App will build list from classes and start a second Activity when run is
required.
Cleanup - Not working - Midway through layout change
New simple layout

Simple list view populated with fixed Simulation[] array
Compiles & runs but doesn't start simulation yet.
Menu item calls second activity with simulation name

Compiles, doesn't run -- something must be missing in the second
activity
Simple layout done