(chore) update Polymer

Update Polymer and change references of platform.js to webcomponents.js.
(feat) add Angular Aria support

ng-poly:app now asks if Angular Aria should be included, if Angular 1.3
is selected. app.{coffee,js} automatically has ngAria as a dependency.
(chore) update generated dependencies
(chore) update package description
(chore) bump version to 0.4.13
(fix) convert hyphenated module name to camelCase

Before, yo ng-poly:module my-door would create 'my-door' in
app/my-door/my-door.js. Now, it creates 'myDoor'.
(fix) change platform exclude to webcomponents

Before, gulp/test.js excluded platform from being injected in
karma.config.js. Now, platform is excluded.
(chore) bump version to 0.4.14
adding notify and plumber
overriding default gulp-notify so message looks better
Merge pull request #78 from TheOneTheOnlyDavidBrown/plumber_notify

adding gulp-notify and gulp-plumber
(chore) fix linting issues

Fixes linting issues and removes excess variables.
(fix) convert hyphenated app name to camelCase
Karma run on compiled app scripts

    should fix
    https://github.com/dustinspecker/generator-ng-poly/issues/76

    + This should make karma a lot simpler as it only has to deal with
    HTML and JavaScript
remove karma jade and haml processors
(fix) create hyphenated url when hyphenated module

Before, adding a hyphenated module it would create a lowerCamel URL.
Now, it creates a hyphenated URL.
(chore) update generator dependencies
(chore) update generated dependencies
(chore) bump version to 0.4.15
separate user and external js,css and fonts

otherwise bower inject will fail