Initial commit - AndroidManifest.xml

The standard Android manifest file. Enables Google Backup API. To use this API in a fork you would need to obtain your own private API key and replace "@string/google_backup_api_key". This file also defines the content provider and set attributes for the activities. I use Android Studio and the Gradle build system so the API levels are not defined in this file. For those using Eclipse/ANT or another build system you may need to define minimum and target API levels in this file. I recommend a minimum of 11, but this could be lowered through the use of the support libraries. Currently I am target level 19, again you can choose what works best for what you want to support and can test on.