Disable info and share buttons on iPad with Safari version <= 531.  Works around bug with colorbox locking up that browser.  See https://bugs.launchpad.net/bookreader/+bug/686220
Disable info and share buttons on iPad with Safari version <= 531.  Works around bug with colorbox locking up that browser.  See https://bugs.launchpad.net/bookreader/+bug/686220

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