CommonJS + AMD support

[rnicholus]

• Allow access to qq object via CommonJS
• Allow access to qq object via AMD
• Ensure qq is global only if CommonJS or AMD are not available
• Make it easier to import/require each bundled js file
• Expose css files in CommonJS lib dir as: "legacy.css", "rows.css", and "gallery.css".
• Update docs to illustrate CommonJS support & integration w/ ES6 modules + Webpack
• Update fineuploader.com w/ module support
• Release to master/develop + git tag
• blog.fineuploader.com for 5.8.0 release
• Release 5.8.0 on npm
• Make 5.8.0 available for download on fineuploader.com
• Tweet 5.8.0 release

This will complete #789.

[rnicholus]

All that's left ATM is docs and the actual release. In addition to allowing Fine Uploader's qq object to be exported via AMD or CommonJS (or global var if neither are available), I also created a "lib" directory as part of the build output that allows all project files to be much more elegantly imported. For example:

Note: This already assumes you are pulling in Fine Uploader via npm.

// use Fine Uploader core (non-ui) for traditional endpoints
var qq = require('fine-uploader')
var uploader = new qq.FineUploaderBasic({...})

// use Fine Uploader UI for traditional endpoints
var qq = require('fine-uploader')

// You may replace "rows" w/ "legacy" or "gallery" depending on your needs
// This assumes you have a loader to handle importing css files, such as Webpack css-loader
require ('fine-uploader/lib/rows.css')

var uploader = new qq.FineUploader({...})

// use Fine Uploader core (non-ui) for s3 endpoints
var qq = require('fine-uploader/lib/s3')
var uploader = new qq.s3.FineUploaderBasic({...})

// use Fine Uploader UI for S3 endpoints
var qq = require('fine-uploader/lib/s3')

// You may replace "rows" w/ "legacy" or "gallery" depending on your needs
// This assumes you have a loader to handle importing css files, such as Webpack css-loader
require ('fine-uploader/lib/rows.css')

var uploader = new qq.s3.FineUploader({...})

...etc

[rnicholus]

Beta published to fine-uploader@5.8.0-beta1.