update edm_is_shown_at in zhw_urnp

Change the url prefix in edm_is_shown_at for every record in zhw_urnp, Newspaper Archives (Azalea Regional Library System). The prefix should change from http://uncleremus[...] to http://azalealibraries[...] Example below. The url patterns are the same for all item 18508 records.

http://uncleremus.advantage-preservation.com/search?pt=2236&by=1890&bm=08&bd=21

to

http://azalealibraries.advantage-preservation.com/search?pt=2236&by=1890&bm=08&bd=21