Android : Android Material Design on KitKat (and lower) devices

I'm going to develop an android application in our school as a project.

I want to use the new Material Design by Google but i know its only available on Android-L Devices. Jack Underwood has recently released the calendar called "Today Calendar", which is in the Material Style and running on Kitkat and lower Devices.

I know that the Actionbar height is a bit bigger than the older one and the navigation drawer toggle has a new style. And so one ...

How do i implement that?

Best regards!