Bump sifter version

jamesmoss · jamesmoss · commit 9cdc1697521a · 2017-04-05T10:36:02.000+01:00
diff --git a/package.json b/package.json
@@ -20,7 +20,7 @@
   },
   "dependencies": {
     "microplugin": "0.0.3",
-    "sifter": "^0.4.0"
+    "sifter": "^0.5.1"
   },
   "devDependencies": {
     "grunt": "0.4.x",
