Permissions redline fixes

This fixes the button bar animation to work on round
devices and also fixes the max height animation to make
sure the vertical button layout animates to max height
when there are only two buttons.

Also adjust some redlines like margins on the buttons and
updated some files that were missing our licensing header.

Change-Id: Ifad4d0f92605be04db2d3c991b4e8a26eadb4b14