bounces, the website is dead and he doesn't respond to mails to other
addresses. Marked email addresses and website as dead. Fixed AT3 misdectection
that was on the TODO list for some time.
* backend/artec.c: Added code in sane_exit() to free memory
malloced in sane_get_devices(). Declared several functions
'static' so they are not exported.
* TODO: removed 'artec' backend from list mentioned in describing
above problems.
* backend/artec.c: Fixed bug causing possible dereference of a NULL
pointer.
* backend/artec.desc: Modified USB entry to say AS6E scanner supported
by SANE AS6E backend.