When rebuilding a model, Keyman Developer would query for the
registered model, but a missing simplifyId call meant that it never
matched the model name (due to `.` vs `_`).
Fixes up scripts (except under /linux) to use `#!/usr/bin/env bash`
instead of `#!/bin/bash` or `#!/bin/sh` so that we don't end up with
the ancient version of bash supplied with macOS.
This became urgent with this PR, because of bash-4.xisms in
build-utils.sh, for example on line 572:
```
if [[ -v _builder_params[$e] ]]; then
```
Replaces the script building kmcomp-$version.zip in TeamCity. Will be
used for more automated keyboard testing shortly.
Means kmcomp-$version.zip will be available as an artifact in all test
builds.
@keymanapp-test-bot skip
With the fix in fix/web/context-only-device, we need to ensure that the
debugger correctly tells KeymanWeb which device is active.
@keymanapp-test-bot skip
