Explicitly request xml format in soundcloud request

SC now defaults to json for their api. We still are using xml for time
being
Use Parcelable object

better way of sending data between activities
Respond to media button clicks
More UI consistency

change activity’s opacity accordingly when it is being swiped
refactoring
Don't need viewpagerindicator anymore
Settings activity is now swipeable
about time for 1.6 release