add Required to copy stat cat editor, add User Summary to patron stat cat editor...

add Required to copy stat cat editor, add User Summary to patron stat cat editor for initial stat cat creation, and fix a bug where editing an existing copy stat cat would attempt to set usr_summary.  Modified behavior a bit so that an update is attempted whenever the user presses update, and not just if data is changed (this was me punting instead of trying to modify the test for both copy and patron stat cats)

git-svn-id: svn://svn.open-ils.org/ILS/trunk@17084 dcc99617-32d9-48b4-a31d-7c20da2025e4