fix raygun errors

node_modules/ace/lib/ace/virtual_renderer.js

@@ -1038,6 +1038,7 @@ var VirtualRenderer = function(container, theme) {
     };
 
     this.$updateLines = function() {
+        if (!this.$changedLines) return;
         var firstRow = this.$changedLines.firstRow;
         var lastRow = this.$changedLines.lastRow;
         this.$changedLines = null;

package.json

@@ -60,7 +60,7 @@
         "c9.ide.language.javascript.tern": "#7aab8b0b6a",
         "c9.ide.language.javascript.infer": "#ebb2daf81a",
         "c9.ide.language.jsonalyzer": "#d82c60fcb9",
-        "c9.ide.collab": "#b94018ab2b",
+        "c9.ide.collab": "#7326f2c49e",
         "c9.ide.local": "#2bfd7ff051",
         "c9.ide.find": "#989c06e6a7",
         "c9.ide.find.infiles": "#f98dfef554",
@@ -93,7 +93,7 @@
         "c9.ide.pubsub": "#92ec19ed3a",
         "c9.ide.readonly": "#f6f07bbe42",
         "c9.ide.recentfiles": "#7c099abf40",
-        "c9.ide.remote": "#f0cdb59bec",
+        "c9.ide.remote": "#f531d62cfb",
         "c9.ide.run": "#f5a056e6ce",
         "c9.ide.run.build": "#915e48b363",
         "c9.ide.save": "#a32a8f4346",