Removed variables

Signed-off-by: Piers <piers@justorbiting.co.uk>
Added z-index and scratchpad

Signed-off-by: Piers <piers@justorbiting.co.uk>
Removed map-stream

Signed-off-by: Piers <piers@justorbiting.co.uk>
Ratio Calculator

Signed-off-by: Piers <piers@justorbiting.co.uk>