checkloc - Add a version number
checkloc - Use regular variables instead of multiple variables in a dictionary

This is cleaner
checkloc - Convert _get_loc_keys() to use dictionary parameter

This way we can just modify the dictionary
instead of having to replace a dictionary with a return value.
checkloc - Make argument order consistent

Put dictionaries at the end
checklock - Add test comparing .properties file string substitutions

We want to make sure each localization uses the same
count and type of substitutions.
checkloc - Separate test cases from printed docstring; copyedit docstring
checkloc - Increase version to 1.1
CHANGELOG - Add changelog file