Move Change list viewpager to seperate fragment

Move the viewpager out of the action bar and into a changeListfragment.
 This fragment is a container for the viewpager.
Use a PagerTabStrip instead of the action bar for the tabs. This looks a bit
 different.
Added missing SelectedChange database table class.

Change-Id: I6aea2c33c2cbb491a7ccf67cb1bdb0434f0486ca