Facebook Android SDK 3.0.2 (see https://developers.facebook.com/android/change-log-3.x)

Summary:
    - Updating project structure to work with ADT v22.

Test Plan: Release testing

Reviewers: clang

Reviewed By: clang

CC: platform-diffs@lists

Differential Revision: https://phabricator.fb.com/D874918
updated android support library v4 to rev12
modified ant.properties to exclude facebook library from coverage analysis
modify UiLifecycleHelper that it can use any SessionFactory to create new Session instances.