Comment 10 for bug 1777207

The working repo branch collab/gmcharlt/lp1777207_circ_grid_performance contains a patch that significantly improves performance of the checkin and checkout grids by teaching egGrid how to simply prepend the new row representing the circulation action, rather than doing a full grid refresh.

Feedback welcome. I'm also taking a look at the underlying performance issue, since when you do have to do a full refresh, like you might when changing the number of rows displayed, it's still not really acceptable that it can take a few seconds to render > 20 rows in the checkin grid when no additional data retrieval is needed.