Includes some small changes in TxtReader to unify with changes in 
CSVReader.

There was a duplicate _check_semantic_mistake. Commented it for now. Also fixed a call to _semantically_related (with underscore), which was made public.

I started fixing the various errors in the current master branch. Still some errors are left. I am already pushing this code so that Tanja and Romeo can also look at it.

I resolved an error that had occurred due to one of the import statements in the SemanticChecker class. I also added proper documentation to the functions in the MistakeFinder class.

Sc 101/semantic for anchor

See merge request !56

Fixed button bugs, file selection stuff. Added functionally in add_to_dict that will save double key entries under an alternate key

Moved dutchwordnet_test.py back into umbra folder. It was unable to run otherwise. We might want to fix this in the future.

Merge branch 'SC-105/needleman-wunsch' of https://gitlab.socsci.ru.nl/msdt/team1920-speechcomparison into SC-105/needleman-wunsch

I relocated the initialization of the Wn_grid_parser object, in order to make the statistics class less messy. I also fixed a bug that was in the master branch at the moment I pulled the code.

Extended list of mistake definitions

See merge request !54

Merge branch 'SC-105/needleman-wunsch' of gitlab.socsci.ru.nl:msdt/team1920-speechcomparison into SC-105/needleman-wunsch

Merge branch 'SC-105/needleman-wunsch' of https://gitlab.socsci.ru.nl/msdt/team1920-speechcomparison into SC-105/needleman-wunsch

Refactored the Needleman-Wunsch based on previous ideas, now the user can set the scores themselves. Rewrote docstrings for the functions, and moved matrix to be an attribute to prevent continuous passing of the same attribute.

Sc 102/fixed nw

See merge request !52