new file: host/source/erase.c
new file: host/source/erase.h
creating erase files called from main with e_flag
modified: firmware/source/usb.c
introducing switch statement with range of values of opcode type detection.
modified: host/source/usb_operations.h
turning off debug
modified: shared/shared_errors.h
renumbering some error codes
thinking I'll have codes which can come from avr set to 128+
paul eeepc