Update NAN to 2.8

cjbj · cjbj · commit d930b6c678ae · 2017-11-17T22:46:23.000+11:00
diff --git a/package.json b/package.json
@@ -29,7 +29,7 @@
     "url": "git://github.com/oracle/node-oracledb.git"
   },
   "dependencies": {
-    "nan": "~2.7.0"
+    "nan": "~2.8.0"
   },
   "devDependencies": {
     "mocha": "^2.4.5",
