* java/org/gnu/emacs/EmacsDocumentsProvider.java (queryRoots):
Implement isChild.
(getNotificationUri, notifyChange): New functions.
(queryDocument1): Set rename and remove flags.
(queryDocument, queryChildDocuments): Allow the requester to
detect changes in the directory hierarchy.
(createDocument, deleteDocument, removeDocument): Signal changes
to the directory hierarchy.
* java/AndroidManifest.xml.in: Declare the new documents
provider.
* java/README: Describe the meaning of files in res/values.
* java/org/gnu/emacs/EmacsDocumentsProvider.java
(EmacsDocumentsProvider): New file.
* java/res/values-v19/bool.xml:
* java/res/values/bool.xml: New files.