Adjusted bootstrap to use bash
Adjusted bootstrap to use bash

The bootstrap script makes some assumptions about shells so I've set it
to bash explicitly. It now also has some more coherent indentation as
well as 'set -e' to quit immediately on error.

Signed-off-by: Michael Bergeron <aa4dcf2e5e27c07a6292c001e3cdddfdd1c6fb1d@gmail.com>

steve-m/kalibrate-rtl,steve-m/kalibrate-rtl,steve-m/kalibrate-rtl