Fixes#7926.
Android 5.0 (Chrome 37) only supports ES3. Thus, we should transpile our
lexical models to ES3 rather than ES2015, for now at least.
For example, this forces constructs such as `const` to be replaced with
`var`.
Fixes#7582.
Because of https://github.com/npm/cli/issues/3466, we must publish our
internal dependency @keymanapp/keyman-version. This change adds a common
builder function builder_publish_to_npm in build-utils-ci.inc.sh to help
with that task, which should be adopted by other scripts that need to
publish to npm, in the future.
For now, responsibility for publishing keyman-version is delegated to
kmlmc. In the future, we will move this to a single top-level build
action that publishes all npm modules across the entire repo for the
given version.
Fixes#4719.
kmlmp no longer assumes '../source/' for paths. It works with paths
relative to the source file. This makes it more compatible with any
valid source .kps file, as well as making current working directory
irrelevant.
Also adds corresponding tests for building .kmp and verifying file
layout.
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
```
