Removing es6-promise reference from TypeScript declaration.

See https://github.com/DefinitelyTyped/DefinitelyTyped/issues/5015 for explanation.

index.d.ts

@@ -1,5 +1,4 @@
 /// <reference types="node" />
-/// <reference types="es6-promise" />
 
 export namespace expectedVersion {
     const any: number;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "eventstore-node",
-  "version": "0.0.15",
+  "version": "0.0.16",
   "description": "A port of the EventStore .Net ClientAPI to Node.js",
   "main": "index.js",
   "types": "index.d.ts",