Bump package version to v0.2.0-beta.8

Author: Chris Kleeschulte

package.json

@@ -2,7 +2,7 @@
   "name": "bitcore-node",
   "description": "Full node with extended capabilities using Bitcore and Bitcoin Core",
   "author": "BitPay <[email protected]>",
-  "version": "0.2.0-dev",
+  "version": "0.2.0-beta.8",
   "lastBuild": "0.2.0-beta.7",
   "main": "./index.js",
   "bin": "./cli/bitcore-node.js",