Update plugin.xml

Author: Hirbod

plugin.xml

@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<plugin id="plugin.google.maps" version="1.2.7" xmlns="http://apache.org/cordova/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
+<plugin id="plugin.google.maps" version="1.2.8" xmlns="http://apache.org/cordova/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
     <name>phonegap-googlemaps-plugin</name>
     <js-module name="phonegap-googlemaps-plugin" src="www/googlemaps-cdv-plugin.js">
         <clobbers target="plugin.google.maps" />