Fixed bug in Triplelore

I was informed of a bug in Triplelore occurring in Java versions 16+ (IFI-machines now run Java 17). I have fixed the bug and made a new release (0.3.2) and a new Makefile that adds some necessary flags for execution.

Please download use the new Makefile, and execute the following commands, if you have started on the exercises (otherwise, simply follow the instructions in the Mandatory assignment):

make clean_all
make setup

I am sorry for any inconvenience! And please keep informing me if you encounter any problems with the oblig or the programs! :)

- Leif Harald