Webpack all the things! Fixes #2135

This significantly speeds up loading of the application; in an average of 3 tests, v1.6
loaded in 11.5s in the runtime on a Mac, whilst the webpacked version of the code
loaded in 5.53s.

web/pgadmin/misc/depends/static/js/depends.js

@@ -1,4 +1,4 @@
-define([
+define('misc.depends', [
   'sources/gettext', 'underscore', 'underscore.string', 'jquery', 'pgadmin.browser',
   'alertify', 'pgadmin.alertifyjs'
 ], function(gettext, _, S, $, pgBrowser, Alertify) {
@@ -6,6 +6,8 @@ define([
   if (pgBrowser.ShowNodeDepends)
     return pgBrowser.ShowNodeDepends;
 
+  var wcDocker = window.wcDocker;
+
   pgBrowser.ShowNodeDepends = pgBrowser.ShowNodeDepends || {};
 
   _.extend(pgBrowser.ShowNodeDepends, {
@@ -192,7 +194,7 @@ define([
       var msg = messages[0],
           $container = panel[0].layout().scene().find('.pg-panel-content'),
           $msgContainer = $container.find('.pg-panel-depends-message'),
-          $gridContainer = $container.find('.pg-panel-depends-container');
+          $gridContainer = $container.find('.pg-panel-depends-container'),
           treeHierarchy = node.getTreeNodeHierarchy(item),
           n_value = -1,
           n_type = type;