stricter jshint

Author: mourner

bbtree.js

@@ -36,7 +36,7 @@ BBTree.prototype = {
 
         var node = this.root,
             path = [],
-            dir, c, parent;
+            dir, c;
 
         while (true) {
             c = compare(key, node.key);

package.json

@@ -23,6 +23,10 @@
     "tape": "^3.0.0"
   },
   "jshintConfig": {
-    "node": true
+    "node": true,
+    "unused": true,
+    "undef": true,
+    "trailing": true,
+    "browser": true
   }
 }