Fix uncaught exception when no location provider available

Change-Id: I2625e6d219401a04a372a487d84edaaf3099f0d6
Dialer: Scrub debug logging for identifiable information.

Change-Id: I2b45ec7c37a7f69c972feb3dde1eac87306259f6
Add reverse lookup provider "Das Telefonbuch" (DE).

Change-Id: I0ad72bb3e57da3d27fb1c50c58c112234c39b585
Add reverse lookup provider "PagineBianche" (IT).

Change-Id: I4db5cbc6bebe847572e872dff93500a0dd451611