added background color for table view cell, as well as colors for nav bar in Appdelegate
finally got model for Movie Details working, including images.  Seem to have lost my header however...
add pull to refresh!
add image to detailViewController
more work polishing, but having an issue getting Int values (year, score, etc) from model.  Must debug.
set movie title on detailviewcontroller; fix missing int values for audience and critic score.
remove some debugging printlns...