1.1.1 - Internationalization

This version adds the following:

• Internationalization and localization - numbers are now automatically formatted according to the user's locale, and the application can now be easily translated into other languages (closes #4 (closed))
• In the changelog, conditions to be noted on all future releases when additional work is required to upgrade the application beyond just a "git pull"

It changes the following:

• Updated readme - reorganized some sections, some rewording, and also wrote about internationalization

It removes the following:

• Pipfile.lock - caused nothing but trouble when your dev environment is different from testing/prod (Ubuntu 18.04 vs 20.04), and when targeting multiple Python versions (closes #6 (closed))

It will be merged when the following are complete:

• Changes have been tested (if applicable)
• New screenshots have been taken (if applicable)
• The changelog includes the upgrade path
• A git tag for the new version has been added and pushed
• The application version has been bumped in the layout template footer