return added
Merge branch 'mitchell-2' into mitchell
added cases to Staff, Validate
fixed cases
asks staff if whom they are checking books out for
Merge branch 'mitchell' of https://github.com/mitchmox/Library-Catalog into mitchell

Conflicts:
	library/bin/Debug/library.exe
	library/obj/x86/Debug/library.exe
Merge branch 'mitchell' into mitchell-2