Fixed the issue that unknown contact sort

Change the header of unknown contact to #.
When using JapaneseContactUtil and ChineseTWContactUtils,
change the sort index of Number Bucket.

affected area:
When including Japanese and Chinese.
This utility class provides specialized handling for locale specific.
information: labels, name lookup keys.

Change-Id: Ie60d647d2b9823194c5f7319f7e57a2f370b4e3a
1 file changed