Refine regexes for Das Telefonbuch.

Looks like private and business numbers have a slightly differing
format.

Change-Id: I7eae982fe81cf890686f49b88417e604ba0171a0
Merge "Refine regexes for Das Telefonbuch." into cm-11.0
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_Dialer into android-4.4