Change labels such that they refer to Pending patrons instead of Staged patrons,...

Change labels such that they refer to Pending patrons instead of Staged patrons, and change Cancel to Delete.
Wire up the Delete action.
Add a sticky number box for how many patrons to retrieve in lieu of paged navigation, and a Refresh button.
Pig-trickery to make the Home Library selector sticky.
Deleting or loading a patron removes the patron from the list.

git-svn-id: svn://svn.open-ils.org/ILS/trunk@14950 dcc99617-32d9-48b4-a31d-7c20da2025e4