Added bottom edge gesture for CurrentlyPlayingPage

git-svn-id: http://cantata.googlecode.com/svn/trunk@5269 b1e49159-3266-923f-9c3e-04f16369770a
Remove unnecessary debug code

git-svn-id: http://cantata.googlecode.com/svn/trunk@5270 b1e49159-3266-923f-9c3e-04f16369770a
Move visible attributes

git-svn-id: http://cantata.googlecode.com/svn/trunk@5271 b1e49159-3266-923f-9c3e-04f16369770a