Dimple support for AMD RequireJS

[stephen-james]

Add support for AMD RequireJS to dimple.

This pull request adds AMD and RequireJS support for dimple.

Scaffolding changes to support this were done to begin.js and end.js with the require/define/exports stuff happening up in begin.js.

NOTE : Since D3 only introduced AMD/RequireJS support after the version that dimple was previously using, this change required an update to the version of D3 that dimple uses, and the latest version has been put in. Changes have been made to the plumbing to support including d3 with a version number, see Supporting Changes below...

Supporting Changes

• Gruntfile modifications to include globals in JSLint for RequireJS and Jasmine
• Gruntfile Karma RequireJS support and changes to not include script tags for required dependencies
• Gruntfile Example Scripts to have script tags generated to support later changes to version numbers of both d3 and dimple
• Example Templates modified to include a script tag placeholder, rather than just a dimple script version placeholder
• Related Rendered Example changes
• d3 license file added and files used as is with version number in filename
• Karma test-main.js RequireJS bootstrap file added
• Spec added to test that modifications to support RequireJS actually work!
• Old failing specs in the project have been marked with "x" to exclude them from Jasmine and the Karma test runner. We'll need to pick this up and check why they aren't executing in current version

[johnkiernander]

This looks great, does this make dimple dependent on d3 v3.4.8 or is it only a problem if you require AMD support?

[stephen-james]

If you use this version of dimple and a previous version of d3 its fine as long as you don't need AMD support.

To use this with AMD support you'd also need to be including d3 v3.3.13+ see d3 commit here

All example files for the dimple site are modified to use d3 v3.4.8 with this pull request though

[johnkiernander]

Awesome, I'll merge it in and include it in the next release