Updates to Android schemas:
Assorted grammatical corrections.
Removed items with dependencies on undocumented APIs.
Consolidated device_access_item (and equivalent definitions) into password_item.
Updated namespace to comply with OVAL Sandbox convention.
Improved documentation for Android schema password policy items.
Updated Android proof-of-concept application to account for Android
schema changes (mainly removed items that depend on undocumented APIs
and changed namespace to conform with OVAL Sandbox convention).
New Android proof-of-concept application binary to account for changes to application.
Edited Android test definitions to account for Android schema changes.