chore(package): update steal-tools to version 2.0.6

Closes #26

Author: greenkeeper[bot]

package.json

@@ -47,7 +47,7 @@
     "jshint": "^2.9.4",
     "steal": "^1.0.8",
     "steal-qunit": "^1.0.0",
-    "steal-tools": "^1.0.1",
+    "steal-tools": "^2.0.6",
     "testee": "^0.8.0"
   },
   "steal": {