Fix up highlight rules

lib/ace/mode/toml_highlight_rules.js

@@ -59,8 +59,8 @@ var TomlHighlightRules = function() {
             next  : "qqstring"
         },
         {
-            token: ["text", "variable.keygroup.toml"],
-            regex: /(?:^\\s*)(?:\\[([^\\]]+)\\])/
+            token: ["variable.keygroup.toml"],
+            regex: "(?:^\\s*)(\\[([^\\]]+)\\])"
         },
         {
             token : keywordMapper,
@@ -81,6 +81,11 @@ var TomlHighlightRules = function() {
             regex : "\\\\$",
             next  : "qqstring",
         }, 
+        {
+            token : "string",
+            regex : '"|$',
+            next  : "start",
+        }, 
         {
             defaultToken: "string"
         }