Add icon to app picker

git-svn-id: http://zxing.googlecode.com/svn/trunk@2601 59b500cc-1b3d-0410-9834-0bbf25fbcc57
Preliminary release changes for 4.3.2

git-svn-id: http://zxing.googlecode.com/svn/trunk@2602 59b500cc-1b3d-0410-9834-0bbf25fbcc57