config: 15.1: Add Exchange

* This is an AOSP app but no longer updated, add it so we
  can translate to the new available languages

Change-Id: I4ce196c9948fcc723c151a4b8c291c8094a0690a
1 file changed
tree: 0a62db8c638e37f1a70e775dd4e9b76bdbdb631b
  1. config/
  2. .gitreview
  3. crowdin_sync.py
  4. README.mkdn