Add the ability to pass float extras to AM.

commit 43a2825a283e29c0f70100146394957af0598b0e
Author: John Grossman <johngro@google.com>
Date:   Wed Apr 27 09:03:53 2011 -0700

    Add the ability to pass float extras to AM.

    Change-Id: I970ad3f76a65bd781099204019095c73ed8c09db

Signed-off-by: Mike J. Chen <mjchen@google.com>
Signed-off-by: John Grossman <johngro@google.com>

Conflicts:

	cmds/am/src/com/android/commands/am/Am.java