MOBILE-3456 release: Fix Android version code

Author: jleyva

config.xml

@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<widget android-versionCode="39000" id="com.moodle.moodlemobile" ios-CFBundleVersion="3.9.1.0" version="3.9.1" versionCode="39100" xmlns="http://www.w3.org/ns/widgets" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">
+<widget android-versionCode="39100" id="com.moodle.moodlemobile" ios-CFBundleVersion="3.9.1.0" version="3.9.1" versionCode="39100" xmlns="http://www.w3.org/ns/widgets" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">
     <name>Moodle</name>
     <description>Moodle official app</description>
     <author email="[email protected]" href="http://moodle.com">Moodle Mobile team</author>