Add fallbacks

[tlivings]

:+1: :hammer:

[pvenkatakrishnan]

:+1: merging.

[totherik]

Prior to publishing, a few things:

• It looks like the migration to tap[e]? from Grunt was partially completed. Unused modules like chai and grunt-mocha-test are still dev dependencies.
• We should add a travis configuration to this repo to ensure tests are run. (Looks like Poornima just did this.) Since Grunt depends on a global install, I would suggest fully migrating off Grunt and directly use jshint, instanbul, and tap[e]? via npm scripts as we do in other repos.
• Versioning should be left to the publisher and/or done at publish time. If there are specific requirements (e.g. require minor or major bump), they can be communicated aside from directly changing the version in package.json. This is done in conjunction with tagging and branching at appropriate versions.
• Remove unused dependencies. Not as important, but util is no longer used in lib/transcoder.js. Also, string.fromcodepoint appears to merely be a dev dependency now (not sure when that changed.) Forgot it was a polyfill.

[pvenkatakrishnan]

yes i am in the process of doing the travis part... by mistake i checked in directly instead of a PR.. apologies... will finish it up now.

[totherik]

So, this MUST be a major version change. It's possible there are existing properties files that use the key include as a content key, rendering this a not-backward-compatible update.

[aredridel]

Oh bother, that's true. We can search ours, but not the world's.

[pvenkatakrishnan]

hmmm yeah I missed that one possibility. possibly call out on the documentation as a 'reserved' key

[aredridel]

Definitely must!

[aredridel]

It is called out in the README (Not highlighted, but mentioned)