1) Do not show language selection if only one language is available. 2) Add CMBARTER_MAX_IMAGE_SIZE parameter in settings.py, which now determines the maximum size for uploaded photos. 3) Decrease the max_length of order's instructions-field to 300 (it was 1000). 4) Limit the number of rows returned by get_unconfirmed_deal() s.p. to 1000.