Switch from `` to $() to make the script more POSIX compliant (to satisfy the Codacy build check).  Also updated the TSK_VERSION to match upstream.
Switch from `` to $() to make the script more POSIX compliant (to satisfy the
Codacy build check).  Also updated the TSK_VERSION to match upstream.

esaunders/autopsy,esaunders/autopsy,wschaeferB/autopsy,rcordovano/autopsy,rcordovano/autopsy,rcordovano/autopsy,wschaeferB/autopsy,rcordovano/autopsy,esaunders/autopsy,esaunders/autopsy,rcordovano/autopsy,esaunders/autopsy,wschaeferB/autopsy,wschaeferB/autopsy,wschaeferB/autopsy,rcordovano/autopsy