Update dependencies to fix security issues

Fixes #606

package.json

@@ -11,10 +11,10 @@
     "crypto"
   ],
   "main": "./bcrypt",
-  "version": "2.0.1",
+  "version": "3.0.0",
   "author": "Nick Campbell (https://github.com/ncb000gt)",
   "engines": {
-    "node": ">= 4.0.0"
+    "node": ">= 6.0.0"
   },
   "repository": {
     "type": "git",
@@ -30,7 +30,7 @@
   },
   "dependencies": {
     "nan": "2.10.0",
-    "node-pre-gyp": "0.9.1"
+    "node-pre-gyp": "0.10.0"
   },
   "devDependencies": {
     "nodeunit": "~0.11.1"
@@ -53,7 +53,8 @@
     "Nate Rajlich <[email protected]> (https://github.com/tootallnate)",
     "Sean McArthur <[email protected]> (https://github.com/seanmonstar)",
     "Fanie Oosthuysen <[email protected]> (https://github.com/weareu)",
-    "Amitosh Swain Mahapatra <[email protected]> (https://github.com/Agathver)"
+    "Amitosh Swain Mahapatra <[email protected]> (https://github.com/Agathver)",
+    "Corbin Crutchley <[email protected]> (https://github.com/crutchcorn)"
   ],
   "binary": {
     "module_name": "bcrypt_lib",
@@ -62,4 +63,4 @@
     "remote_path": "/kelektiv/node.bcrypt.js/releases/download/v{version}/",
     "package_name": "{module_name}-v{version}-{node_abi}-{platform}-{arch}-{libc}.tar.gz"
   }
-}
+}