_Description: Installation directory of the minikraken database:
QCumber is using kraken which needs a database. To simplyfy the process
of creating the database which requires a lot of computing power there is
the option to download this database (see
https://ccb.jhu.edu/software/kraken/). If you want to run QCumber the
directory of the kraken database needs to be known to the program. Please
input the directory the database is installed or should the database be
installed by the script /usr/share/doc/qcumber/get-minikrakendb.