Added the new preference screen. It currently contains placemarkers for
some of the settings. A theme choosing dialog is in place but not theme
implementation has currently been implemented into the actual coding.

Sadly all previous animations are now redundant since the move to API
11+ FragmentManagers and so all R.anim.* xml files will need to be
changed to the ObjectAnimator format. Until that has been done, all
fragment transitions are defaulting to android.R.fade_in and
android.R.fade_out.

Signed-off-by: Conrad Haupt <me@conradhaupt.co.za>