ripemd160 should not be a dev dependency

npm-shrinkwrap.json

@@ -4776,7 +4776,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-2.0.2.tgz",
       "integrity": "sha1-ZuodhW206KVHDK32/OI65SRO8uE=",
-      "dev": true,
       "requires": {
         "inherits": "2.0.3"
       }
@@ -7132,7 +7131,6 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-2.0.1.tgz",
       "integrity": "sha1-D0WEKVxTo2KK9+bXmsohzlfRxuc=",
-      "dev": true,
       "requires": {
         "hash-base": "2.0.2",
         "inherits": "2.0.3"

package.json

@@ -70,7 +70,6 @@
     "gruntify-eslint": "^4.0.0",
     "istanbul": "^0.4.5",
     "mocha": "^4.1.0",
-    "ripemd160": "^2.0.1",
     "sinon": "^4.2.2",
     "whatwg-fetch": "^2.0.3",
     "zlibjs": "~0.3.1"
@@ -84,6 +83,7 @@
     "jwk-to-pem": "^1.2.6",
     "node-fetch": "^1.7.3",
     "node-localstorage": "~1.3.0",
+    "ripemd160": "^2.0.1",
     "rusha": "^0.8.12"
   },
   "repository": {