Changed
- updated `requirements-dev.txt` to have all needed requirements for development
- `replacy/db.py:get_forms_lookup` and `replacy/db.py:get_match_dict` now each accept one parameter - the path to the resource they will load. The default value of this parameter is the value that was previously hardcoded.
- `replacy/__init__.py:ReplaceMatcher.__init__` now does not require a `match_dict` to be passed in as the second parameter. If no `match_dict` is passed, it will load one by calling `replacy/db.py:get_match_dict()` (with no parameter, so it will look in the default location).