move underscore to its old place and remove unnecessary packages (#4876)

src/static/js/AttributeManager.js

@@ -2,7 +2,7 @@
 
 const Changeset = require('./Changeset');
 const ChangesetUtils = require('./ChangesetUtils');
-const _ = require('./vendors/underscore');
+const _ = require('./underscore');
 
 const lineMarkerAttribute = 'lmkr';
 

src/static/js/broadcast.js

@@ -28,7 +28,7 @@ const AttribPool = require('./AttributePool');
 const Changeset = require('./Changeset');
 const linestylefilter = require('./linestylefilter').linestylefilter;
 const colorutils = require('./colorutils').colorutils;
-const _ = require('./vendors/underscore');
+const _ = require('./underscore');
 const hooks = require('./pluginfw/hooks');
 
 // These parameters were global, now they are injected. A reference to the

src/static/js/broadcast_slider.js

@@ -23,7 +23,7 @@
 
 // These parameters were global, now they are injected. A reference to the
 // Timeslider controller would probably be more appropriate.
-const _ = require('./vendors/underscore');
+const _ = require('./underscore');
 const padmodals = require('./pad_modals').padmodals;
 const colorutils = require('./colorutils').colorutils;
 

src/static/js/domline.js

@@ -24,7 +24,7 @@
 
 const Security = require('./security');
 const hooks = require('./pluginfw/hooks');
-const _ = require('./vendors/underscore');
+const _ = require('./underscore');
 const lineAttributeMarker = require('./linestylefilter').lineAttributeMarker;
 const noop = () => {};
 

src/static/js/skiplist.js

@@ -23,7 +23,7 @@
  */
 
 const Ace2Common = require('./ace2_common');
-const _ = require('./vendors/underscore');
+const _ = require('./underscore');
 
 const noop = Ace2Common.noop;
 

src/static/js/undomodule.js

@@ -23,7 +23,7 @@
  */
 
 const Changeset = require('./Changeset');
-const _ = require('./vendors/underscore');
+const _ = require('./underscore');
 
 const undoModule = (() => {
   const stack = (() => {