CLI command func logging snapshot with example

[brodycj]

• add new cli-command-with-logging-with-example-with-options.test.js test script to run the commander function in lib/cli-command.js with options to include generated example, with mocks, and with console log output included in the test snapshot
• capture of the test snapshot which includes the recently updated post-create instructions for the generated example project
• cross-env workarounds needed to get the test snapshot working with Stryker Mutator
• tried another cross-env workaround for Travis CI, does not seem to make much of a difference

The purpose of this proposal is to add test coverage for many of the surviving mutations recently discovered by Stryker Mutator, as I reported in issue #275.

[brodycj]

/merge master

[brodycj]

Most of the console log output is now covered by PR #376, closing.