Upgreade version and fix an dependencies issue (#40)

modules/nodejs-agent/package.json

 {
   "name": "skywalking-nodejs",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "The Node server instrument SDK for Apache SkyWalking",
   "main": "index.js",
   "scripts": {
@@ -40,7 +40,8 @@
     "grpc": "^1.10.1",
     "on-finished": "^2.3.0",
     "resolve": "^1.8.1",
-    "uuid": "^3.2.1"
+    "uuid": "^3.2.1",
+    "semver": "^5.5.1"
   },
   "devDependencies": {
     "eslint": "^4.19.1",
@@ -49,8 +50,7 @@
     "grpc-tools": "^1.6.6",
     "mysql": "^2.15.0",
     "require-self": "^0.2.1",
-    "run-script-os": "^1.0.3",
-    "semver": "^5.5.1"
+    "run-script-os": "^1.0.3"
   },
   "eslintIgnore": [
     "lib/network/*.js"