removed testrpc, added truffle latest

Author: altafan

package.json

@@ -12,7 +12,7 @@
   "author": "tiero",
   "license": "MIT",
   "dependencies": {
-    "ethereumjs-testrpc": "^4.1.3",
+    "truffle": "^4.0.1",
     "truffle-hdwallet-provider": "0.0.3",
     "zeppelin-solidity": "^1.4.0"
   },