Sc 140/testing

See merge request !75

Delete controller.py

See merge request !74

Bugfixing/#7

Closes #7

See merge request !73

Switched model and view initialisation, so that view can show splash BEFORE computationally intensive model is loaded

Ubuntu breaks on a couple of statements (see comments, and Issues #5 and 
#6)

We continued, and for now finished, work on the form checker. This included functions for prefix and affix checks. As well as checks for irregular verbs. We also added the documentation and cleaned up the code afterwards.

Sc 129/questioned model class

See merge request !69

Merge branch 'SC-140/testing' of https://gitlab.socsci.ru.nl/msdt/team1920-speechcomparison into SC-140/testing

There is a typo in the branch name. This should however fix a bug where two files can be added at the same time and should fix the button texts

Made slight changes to the GUI according to user test data. So changed button labels, made comboboxes behaviour more dynamic with possibility of selecting read only or disabled when files are present or no.