Making contact selection lookup key based.

- We will no longer load the selected URI just to get
  the contact ID
- We will base the selection in the list on the
  pair of directoryId and lookup key
- Also, we will no longer require IS_RESTRICTED and IS_SUPER_PRIMARY
  to be non-NULL

Change-Id: Ic093060a1c19413b276da35619ecbbed418e27dc
5 files changed