FBI-1684: [MANTIS - 22275] Scroll in trigger editor jumps several lines up when

scrolling with the mouse scroll wheel

resolve observations

gulliver/js/codemirror/addon/lint/css-lint.js

@@ -1,9 +1,23 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
 // Depends on csslint.js from https://github.com/stubbornella/csslint
 
 // declare global: CSSLint
 
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
 CodeMirror.registerHelper("lint", "css", function(text) {
   var found = [];
+  if (!window.CSSLint) return found;
   var results = CSSLint.verify(text), messages = results.messages, message = null;
   for ( var i = 0; i < messages.length; i++) {
     message = messages[i];
@@ -17,3 +31,5 @@ CodeMirror.registerHelper("lint", "css", function(text) {
   }
   return found;
 });
+
+});