Sync with Archive CVS.  Allow use of backup servers for item content.  Logic to direct to mang's testing server.
Sync with Archive CVS.  Allow use of backup servers for item content.  Logic
to direct to mang's testing server.

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