fixed dev bson dep

Author: christkv

package.json

@@ -21,7 +21,7 @@
     "JSONStream": "^1.0.7",
     "betterbenchmarks": "^0.1.0",
     "bluebird": "3.4.6",
-    "bson": "1.0.0",
+    "bson": "latest",
     "cli-table": "^0.3.1",
     "co": "4.6.0",
     "colors": "^1.1.2",