Contacts: Add support for Blacklist [1/2]

Change-Id: Ibc07f5749b7adcc08f106012ba22ae866d004921

Conflicts:
	src/com/android/contacts/CallDetailActivity.java
Allow blacklisting numbers from the call stats details menu.

Change-Id: I840c382afb561805fd74cbd696a80d3bca4be041
JIRA:CYAN-910

Conflicts:
	src/com/android/contacts/CallDetailActivity.java
	src/com/android/contacts/calllog/ContactInfoHelper.java