Late order management

Status:	Implemented with changes, see bug
Sponsored by:	St Etienne University
Developed by:	BibLibre
Expected for:	2011-05-01
Bug number:	Bug 5347
Work in progress repository:	No URL given.
Description:	For lateorders, we will add fields for date and comment coming from the library. For claims, we will add a claim counter, to know how many times an order has been claimed a claim table, containing all the claims an order has, with the date of the claim and the content of the claim

Late orders acq RFC