CB-4871 Remove unused dependencies in CLI
CB-4871 Remove jshint dependency.

Was used only to give better error message when parsing of config.json
fails. Node should give a good-enough message (plus this is a niche
file).
Revert "CB-4871 Remove unused dependencies in CLI"

This reverts commit 75af910b6494df409587510f7845d4b7f2101e8b.
Didn't mean to delete ripple.js in this commit
CB-4871 Remove unused dependencies in CLI (take 2)
CB-4871 Delete ripple command.

This saves 11 megs from node_modules.
- The command was undocumented and reported broken (CB-5075)

If we add back the command, we should ask users to install ripple
separately instead of using node_modules.