Fragmentize the dialpad UI

Moved most of DialpadActivity into the new class DialpadFragment.
The old DialpadActivity is now just a simple container for the fragment.

TESTED (on crespo):
  - Dialing an outgoing call
  - Options menu (only visible once you've typed at least one digit)
  - "Dialpad chooser" scenario (the special UI when you bring up the
    dialpad while a call is already active).  Note that text colors in
    the dialpad chooser items are wrong; that'll be fixed by some
    upcoming theme cleanup.

Change-Id: I8827727bb2bc86936c4ef23e1a307ac04141c1ea
diff --git a/res/layout-long/dialpad_activity.xml b/res/layout-long/dialpad_fragment.xml
similarity index 97%
rename from res/layout-long/dialpad_activity.xml
rename to res/layout-long/dialpad_fragment.xml
index 2580625..85250e2 100644
--- a/res/layout-long/dialpad_activity.xml
+++ b/res/layout-long/dialpad_fragment.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2009 The Android Open Source Project
+<!-- Copyright (C) 2011 The Android Open Source Project
 
      Licensed under the Apache License, Version 2.0 (the "License");
      you may not use this file except in compliance with the License.