Update tests for new behaviour of 'cover' page specifier.  Add protected book to tests.
Update tests for new behaviour of 'cover' page specifier.  Add protected book to tests.

Islandora/internet_archive_bookreader,Islandora/internet_archive_bookreader,niksu/bookreader,niksu/bookreader,gootdude/bookreader,internetarchive/bookreader,internetarchive/bookreader,yankl/bookreader,garyrh/bookreader,Islandora/internet_archive_bookreader,openlibrary/bookreader,openlibrary/bookreader,garyrh/bookreader,gootdude/bookreader,brisandbeans/bookreader,garyrh/bookreader,openlibrary/bookreader,Islandora/internet_archive_bookreader,niksu/bookreader,openlibrary/bookreader,brisandbeans/bookreader,nikolas/bookreader,yankl/bookreader,niksu/bookreader,garyrh/bookreader,nikolas/bookreader,brisandbeans/bookreader,yankl/bookreader,openlibrary/bookreader,yankl/bookreader,gootdude/bookreader,brisandbeans/bookreader,garyrh/bookreader,niksu/bookreader,Islandora/internet_archive_bookreader,brisandbeans/bookreader,gootdude/bookreader,yankl/bookreader