Add wrapper for AMDJS, CommonJS and browser modules

[prantlf]

Adds wrapping factory function recognizing the three environments and plugging the mockjax into jQuery accordingly.

Includes just this change an no other refactoring.

Uses the universal module pattern and the name 'jquery' for the jQuery module dependency.

[jakerella]

Thanks for taking this, unfortunately this is on the roadmap for 2.0.0 and won't be implemented in the 1.x branch. Ca you do this work on the v2 branch and send a PR for that? We also need to be sure to run this with all current tests (which use the <script> inclusion method) and then create tests for the other forms of importing (CommonJS and AMD).

[prantlf]

You're welcome. I'll create another PR for the v2 branch. The current tests run "green". I'll try adding loading tests too when the time permits.

[prantlf]

I created #229 with this change against the v2 branch. Another PR - #230 - contains init tests for AMD using Require.js. Yet another PR - #231 - tests the CommonJS interface in Node.js. This PR can be probably closed.

[jakerella]

Closing this issue for now. We will not be integrating AMD/UMD into the 1.x branch.