gs1-cc fixes
gs1-cc fixes

method 11 leave non-alpha to main loop
add alphanum shift on alpha pad
bwipp/postscriptbarcode,bwipp/postscriptbarcode,bwipp/postscriptbarcode,bwipp/postscriptbarcode,bwipp/postscriptbarcode,bwipp/postscriptbarcode,bwipp/postscriptbarcode,bwipp/postscriptbarcode