Update package json and bump version number (#6807)

* Update package json and bump version number

* Use "bluebird": "^3.5.1"

Author: gabor-boros

package.json

@@ -1,37 +1,23 @@
 {
-   "name": "rethinkdb",
-   "version": "2.3.1",
-   "main": "rethinkdb",
-   "description": "This package provides the JavaScript driver library for the RethinkDB database server for use in your node application.",
-   "keywords": [
-      "database",
-      "NoSQL",
-      "reql",
-      "query language"
-   ],
-   "homepage": "http://rethinkdb.com",
-   "bugs": {
-      "url": "http://github.com/rethinkdb/rethinkdb/issues",
-      "email": "bugs@rethinkdb.com"
-   },
-   "files": [
-      "rethinkdb.js",
-      "ast.js",
-      "net.js",
-      "util.js",
-      "errors.js",
-      "cursor.js",
-      "README.md",
-      "proto-def.js"
-   ],
-   "repository": {
-      "type": "git",
-      "url": "http://github.com/rethinkdb/rethinkdb.git"
-   },
-   "engines": {
-      "node": ">= 0.10.0"
-   },
-   "dependencies": {
-      "bluebird": "^3.5.1"
-   }
+    "name": "rethinkdb",
+    "version": "2.4.0",
+    "main": "rethinkdb",
+    "description": "This package provides the JavaScript driver library for the RethinkDB database server for use in your node application.",
+    "keywords": ["database", "NoSQL", "reql", "query language"],
+    "homepage": "https://rethinkdb.com",
+    "bugs": {
+        "url": "https://github.com/rethinkdb/rethinkdb/issues",
+        "email": "gabor.brs@gmail.com"
+    },
+    "files": ["rethinkdb.js", "ast.js", "net.js", "util.js", "errors.js", "cursor.js", "README.md", "proto-def.js"],
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/rethinkdb/rethinkdb.git"
+    },
+    "engines": {
+        "node": ">= 0.10.0"
+    },
+    "dependencies": {
+        "bluebird": "^3.5.1"
+    }
 }