Make the 'sys' method use the binary directory
Make the 'sys' method use the binary directory

If a directory was given for NCBI BLAST+, the 'sys' method will
set the PATH environment variable to this directory before
executing a shell command, if no other path was given.
Signed-off-by: Lawrence John Maynard <99c9491dbc214083d560f356b771e6dd533c3bfe@gmx.com>

yeban/sequenceserver,yeban/sequenceserver,yeban/sequenceserver,yeban/sequenceserver,elsiklab/sequenceserver,elsiklab/sequenceserver,elsiklab/sequenceserver