npm ci fails on Windows when dev-server is running

[samreid]

In #1175 we added package-lock.json and npm ci.

@jessegreenberg @jbphet and @AgustinVallejo reported that npm ci fails on Windows while the dev server is running. This is particularly troublesome since npm ci is automatically run during certain lifecycle processes, such as grunt rc, so it can fail out that process.

Some ideas how to address it:

1. Add a message for the dev to stop their dev server before trying npm ci in chipper
2. Catching the error if that npm ci fails, and alerting the dev
3. [Your idea here]

[jessegreenberg]

Developer meeting comments:

• MK: This should go away when JO fixes it. Change should land in the next couple of weeks.
• JB: Vote against a message, ideally we should fix the root of the problem.

[jessegreenberg]

Assigning to @jonathanolson since he is working on the root of a problem in another issue. Thanks!