Cleanup some CAF code.

Instead of exposing the concept of supplementary service notifications
to InCallUI (and then not using it), convert the respective
notifications into boolean flags.

Change-Id: I0b72c3efdccb4aa163e27fb0205b939c32d7a184
Add reverse lookup provider "Das Telefonbuch" (DE).

Change-Id: Ic3b5197bb7d6d2955ada9f3d902decff088433ec
Merge "Add reverse lookup provider "Das Telefonbuch" (DE)." into cm-11.0
Merge "Cleanup some CAF code." into cm-11.0
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_services_Telephony into android-4.4