* Expect less chaos: set call index explicitly.
* mark test pallet as dev mode so explicit call indicies are not required.
* Fix 'dev_mode' syntax
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>