Webpack (#9391)

* webpack poc, this is not going to work for plugins, dam

* tech: webpack and systemjs for plugins starting to work

* tech: webpack and systemjs combo starting to work

* tech: webpack + karma tests progress

* tech: webpack + karma progress

* tech: working on tests

* tech: webpack

* tech: webpack + karma, all tests pass

* tech: webpack + karma, all tests pass

* tech: webpack all tests pass

* webpack: getting closer

* tech: webpack progress

* webpack: further build refinements

* webpack: ng annotate fixes

* webpack: optimized build fix

* tech: minor fix for elasticsearch

* tech: webpack + ace editor

* tech: restored lodash move mixin compatability

* tech: added enzyme react test and upgraded to react v16

* tech: package version fix

* tech: added testdata to built in bundle

* webpack: sass progress

* tech: prod & dev build is working for the sass

* tech: clean up unused grunt stuff and moved to scripts folder

* tech: added vendor and manifest chunks, updated readme and docs

* tech: webpack finishing touches

scripts/grunt/release_task.js

@@ -0,0 +1,41 @@
+var path = require('path');
+
+module.exports = function(grunt) {
+  "use strict";
+
+  // build, then zip and upload to s3
+  grunt.registerTask('release', [
+    'build',
+    'build-post-process',
+    'compress:release'
+  ]);
+
+  grunt.registerTask('build-post-process', function() {
+    grunt.config('copy.public_to_temp', {
+      expand: true,
+      cwd: '<%= srcDir %>',
+      src: '**/*',
+      dest: '<%= tempDir %>/public/',
+    });
+    grunt.config('copy.backend_bin', {
+      cwd: 'bin',
+      expand: true,
+      src: ['*'],
+      options: { mode: true},
+      dest: '<%= tempDir %>/bin/'
+    });
+    grunt.config('copy.backend_files', {
+      expand: true,
+      src: ['conf/*', 'vendor/phantomjs/*', 'scripts/*'],
+      options: { mode: true},
+      dest: '<%= tempDir %>'
+    });
+
+    grunt.task.run('copy:public_to_temp');
+    grunt.task.run('copy:backend_bin');
+    grunt.task.run('copy:backend_files');
+    grunt.task.run('clean:packaging');
+
+    grunt.file.write(path.join(grunt.config('tempDir'), 'VERSION'), grunt.config('pkg.version'));
+  });
+};