Add a few comments about why we're renaming JS files during un-minified build

src/Umbraco.Web.UI.Client/gulp/tasks/js.js

@@ -28,6 +28,7 @@ function js() {
         })
       );
     } else {
+      // rename the un-minified file so the client can reference it as '.min.js'
       task = task.pipe(rename(function(path) {
         path.basename += '.min';
       }));

src/Umbraco.Web.UI.Client/gulp/util/processJs.js

@@ -45,6 +45,7 @@ module.exports = function (files, out) {
         })
       );
     } else {
+      // rename the un-minified file so the client can reference it as '.min.js'
       task = task.pipe(rename(function(path) {
         path.basename += '.min';
       }));