kes Modify winbacula.nsi to substitute with g bin_dir_cmd. Should fix

     bug #742.
09Jan06
kes  Modify USTORE constructor to set an empty store_source string,
     and don't copy the store_source string in a cancel.  Hopefully
     this will fix Arno's seg fault, bug #744.
kes  Add back code to disable conio in configure. Fixes bug #743.
kes  Correct the Options scanner in the FD to correctly handle
     SHA1 option, which was eating the next option.  Reported by
     Sebastien Guilbaud.
kes  Add code to indicate when the SD is spooling, spool wait, and
     despooling as requested by Alan Brown.