Merge pull request #339 from ethereum/fixTape

Force tape version to 4.9.2.

Author: chriseth

package.json

@@ -55,7 +55,7 @@
     "ethereumjs-util": "^5.2.0",
     "istanbul": "^0.4.5",
     "semistandard": "^12.0.0",
-    "tape": "^4.9.1",
+    "tape": "=4.9.2",
     "tape-spawn": "^1.4.2"
   },
   "semistandard": {