Uses poor man's module mode (i.e. appending .js files) to avoid module
issues with the changeover from Lerna to NPM and tsc -b for builds. We
will revisit this once the builds have stabilised.
Some of the global color variables in shellHelperFunctions.sh were a
little dangerously named. This cleans that up and removes a couple of
redundant functions from other locations.
mac/bashHelperFunctions.sh should be removed and replaced with
references to shellHelperFunctions.sh -- but I wanted to leave that for
a separate branch.
