Initial commit
Update browser-sync to ~0.7.2
Replace Express with Mach

Mach is lighter weight than Express, and puts an emphasis on Promises, just like Ember.

https://github.com/mjijackson/mach
Remove yuidoc-bootstrap-theme

This theme was lacking in some areas, so I will leave it up to others to choose an alternative theme.
Update modules
Remove reference to js/config.js
Update Ember and QUnit
Remove custom error handler for gulp-plumber

The default one is much better now.
Alphabetize dependencies
Use yargs for command line arguments
Use gulp-if for conditional piping
Remove gulp-util
Get AMD module loader and resolver from Bower
Replace gulp-ember-handlebars; use modules for templates

gulp-ember-handlebars is deprecated