Removed clean.sh for flask generator. Instead the generator generates a clean.sh with the user-chosen filenames for the controller og model.
output_model, output_view, etc. are a bit confusing variable names. Changed to filename_model, filename_view, etc., for both flask and django.
Some bugfixes related to generation from menu where name contains spaces and default values can be None.
Made bugfixes in django generator too. Not completely working yet.