Modify USB scanner open code to only use StillImage service if WANT_STILLIMAGE environment variable is set. The NO_STILLIMAGE environment variable is now deprecated.
USB Scanner open code now attempts to open specific address, and if that fails tries all addressed until it finds desired device. Note that this code may not work as desired if multiple instances of the same scanner are connected.
Updates and various bugfixes for OSBI
Fix issue with edit and resubmit not reading fingerprints from original transaction
Fix issue with OSBI_AST and add exception handling for Texas offense