fix smokesignals version

Author: Jimmy Aumard

package.json

@@ -33,7 +33,7 @@
     "eslint-config-trails": "^3.0.0",
     "mocha": "^3.4.2",
     "pre-commit": "^1.2.2",
-    "smokesignals": "^3.0.3",
+    "smokesignals": "^2.1.1",
     "sqlite3": "^3.1.8",
     "trails": "^2.0.2"
   },