Support array namespaces for module nesting

[jskrzypek]

Summary

This PR addresses two issues, #15 and #34, by

• replacing deep-assign and clone dependencies with lodash.merge and lodash.clonedeep
• refactoring the namespace resolution utils to support array namespaces and to be more DRY
• refactoring stripSlashes() in utils to support arrays and use lodash.trim instead of the regex

[marshallswain]

@jskrzypek this is beautiful. Looks like a minor release? Nothing breaking in here, right?

[jskrzypek]

@marshallswain
Nope, I did not change any tests to make them pass. I also changed getNameFromConfig() to be getNameFromExplicit() to better match the nameStyles value, but I updated all of the references to the function, so nothing breaks.

[daffl]

@marshallswain I can make the release if you add me to npm.

[marshallswain]

@daffl that would be great. I added you. Thanks!

[daffl]

Released as v0.8.0. Thank you for the PR!