Merge pull request +15908 from c9/require-cleanup

do not leave script nodes in the document

node_modules/architect-build/build_support/mini_require.js

@@ -407,6 +407,7 @@ var loadScriptWithTag = function(path, id, callback) {
     
     s.onload = s.onreadystatechange = function(_, isAbort) {
         if (isAbort || !s.readyState || s.readyState == "loaded" || s.readyState == "complete") {
+            s.remove && s.remove();
             s = s.onload = s.onreadystatechange = null;
             if (!isAbort)
                 callback(null, id);

plugins/c9.ide.help.support/support.js

@@ -146,8 +146,7 @@ define(function(require, exports, module) {
                 s.async = true;
                 s.src = '//api.usersnap.com/load/' +
                         'e3d3b232-1c21-4961-b73d-fbc8dc7be1c3.js';
-                var x = document.getElementsByTagName('script')[0];
-                x.parentNode.insertBefore(s, x);
+                document.head.appendChild(s);
             })();
 
             // Create UI elements