-Added a BaseActivity superclass that defines all activity layouts with drawers etc.
-Added a Menu Drawer and Quick List functionality to a left and right drawer layout.
-Remodeled a lot of the backend architecture (PodcastHelper) into a more organized style.
-Added a "toggled" attribute to the custom view ToggleImageButton that sets the initial toggled status of the view.
-There's currently a large performance overhead when switching activities which may be mitigated by going back to Fragments.