Refactor UI Build System (#3203)

* initial build trial, clean up awx/ui

* fix hardcoded refs to ng-toast, add jshint preloader

* remove browserify test

* update grunt-jshint -> jshint module loader, browser-sync, update dev targets to build-docker-machine & build-docker-cid, fix blocking tasks

* less autoprefixer

* sample build commands

* fix release build

* update README

* karma config stub

* webpack config for karma tests

* karma preview for shane

* fix build-docker-machine target

* karma+webpack test pipeline configuration, stub tests

* fix smart/job status icons classes

* fix jquery + jsyaml shims, fix LESS cascade

* fix angular-codemirror dependency, explicitly import style/mode dependencies

* shim jsonlint

* fix angular-scheduler AMD imports, remove jquuery-ui shim, fix release config

* use closed $.fn.datepicker for system-tracking

* remove packaging/node/

* remove old tests

* shrinkwrap fragile dependency sandcastle, update README, lint

* first pass at fixing rrule shim

* update makefile targets

* update gitignore w/ new flag file

* add saucelabs karma config

* add license controller test

* add examples of service and directive tests

* Makefile flubs

* consolidate clean-ui target, compulsively update flag file location

* dep on CJS/AMD/UMD compatible version of rrule lib, fix example tests/config for demo

* boilerplate karma config for saucelabs (should be abstracted to common config after proven to work)

* update docs

* docs feedback

* update Dockerfile with Node 6.x dep

awx/ui/Gruntfile.js

@@ -0,0 +1,34 @@
+module.exports = function(grunt) {
+    // Load grunt tasks & configurations automatically from dir grunt/
+    require('load-grunt-tasks')(grunt);
+    // display task timings
+    require('time-grunt')(grunt);
+
+    var options = {
+        config: {
+            src: './grunt-tasks/*.js'
+        },
+        pkg: grunt.file.readJSON('package.json')
+    };
+
+    var configs = require('load-grunt-configs')(grunt, options);
+
+    // Project configuration.
+    grunt.initConfig(configs);
+    grunt.loadNpmTasks('grunt-newer');
+
+    // writes environment variables for development. current manages:
+    // browser-sync + websocket proxy
+
+    grunt.registerTask('dev', [
+        'clean:static',
+        'concurrent:dev',
+        'browserSync:http',
+        'concurrent:watch'
+    ]);
+
+    grunt.registerTask('release', [
+        'webpack:prod',
+        'concurrent:prod',
+    ]);
+};