Ifi set-up

A little back and forth regarding set-up on the Ifi cluster, but this is the current set-up as far as we can see.

1. The command 
   /opt/ifi/python-3.7/bin/ipython 
   should give you IPython with python 3.7
2. If you write
   export PATH=/opt/ifi/python-3.7/bin/:$PATH
   to the terminal, or put it into your .bashrc-file and login anew, the command
   ipython
   will have the same result.
3. Observe the order in the path, you have to put the new directory first - not last - in the path.
4. The path gives you IPython with packages (nltk, numpy, sklearn, etc.).
5. (Updated 10 Sept.) You can now also get jupyter notebook with this path.
6. Since jupyter notebook was not available until 10 Sept, if you have answered mandatory assignment 1 in a jupyter notebook on your own machine using python 3.6 or 3.7, you may deliver without checking it on the IFI cluster provided:
   1. Together with the notebook, you deliver a pdf with results of all runs
   2. You have not used all kinds of fancy packaged. 
   But, if you have not delivered yet, you are encouraged to check on the IFI cluster before you deliver.