Issue 2407: Show confirmation dialog before clearing call log.

Signed-off-by: David Sobreira Marques <dpsmarques@gmail.com>
Change-Id: I9c89eef6c4c940406e1238810f13959c41c07908
Merge (-sours) commit 'aeb7846f5da15c000ab77960797a598511acfbd6' into HEAD

* commit 'aeb7846f5da15c000ab77960797a598511acfbd6':
  Issue 2407: Show confirmation dialog before clearing call log.
Revert "DO NOT MERGE Fix Activity instance leak by ContactsPreferences observer"

This reverts commit c7f25410daccf9e14c1726fd3e778910d894f243.

Conflicts:
	src/com/android/contacts/ContactsListActivity.java

Conflicts:
	src/com/android/contacts/ContactsListActivity.java
Revert "DO NOT MERGE Sticky tab rule: Remember the last tab that was used to call"

This reverts commit 00ea05799040a55f85cc449fede956983003af97.

Conflicts:
	src/com/android/contacts/ContactsListActivity.java
	src/com/android/contacts/DialtactsActivity.java
	src/com/android/contacts/PhoneDisambigDialog.java
	src/com/android/contacts/ViewContactActivity.java
Revert "Implement granting of URI permissions from picker.  DO NOT MERGE."

This reverts commit 958aca24fb348cd8795a952df7de299f09e66d2d.

Conflicts:
	src/com/android/contacts/ContactsListActivity.java