move cordova plugins namespace in to cordova definition

cordova-ionic/cordova-ionic.d.ts

@@ -5,10 +5,6 @@
 
 /// <reference path="./plugins/keyboard.d.ts" />
 
-interface Cordova {
-  plugins:Plugins;
-}
-
-interface Plugins {
+interface CordovaPlugins {
   Keyboard:Ionic.Keyboard;
 }

cordova/cordova.d.ts

@@ -43,8 +43,12 @@ interface Cordova {
     define(moduleName: string, factory: (require: any, exports: any, module: any) => any): void;
     /** Access a Cordova module by name. */
     require(moduleName: string): any;
+    /** Namespace for Cordova plugin functionality */
+    plugins:CordovaPlugins;
 }
 
+interface CordovaPlugins {}
+
 interface Document {
     addEventListener(type: "deviceready", listener: (ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;