Update codechain-primitives version to 0.3.0

Author: majecty

package.json

@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "codechain-keystore": "~0.3.0",
-    "codechain-primitives": "~0.2.0",
+    "codechain-primitives": "~0.3.0",
     "commander": "^2.17.1",
     "enquirer": "^1.0.3",
     "lodash": "^4.17.10",