LP1883171 & LP1940663: Basic staff client modifications

LP1883171 & LP1940663: Basic staff client modifications

Modify the Item Staus view to check the new return values of the
update copy inventory function.

Fix toast handling in the list view to properly report success and failure.

Add toast handling to the single copy Item Status view to report
success and failure.

NOTE: More work could be done on the toasts to report number of
successful updates, etc.  I tried using the compileContent and trusted
HTML, but this lead to new errors that I couldn't decipher.

This work was sponsored by NOBLE.

Signed-off-by: Jason Stephenson <jason@sigio.com>
Signed-off-by: Michele Morgan <mmorgan@noblenet.org>