Minor renaming of lc_availment to lcavail.
Fixed bug in ibdint.py concerning intx.

Intx was refactored to bring it into line with changes that have
have been made to excel.Excel. Date bugs were changed where django
expects a date object but i gave it date string. Ordering 1st by id
was added to app ibdint.admin. more customer data loaded into static
data file.