Make updating local folder format possible while keeping the data and settings

[staadecker]

[staadecker]

More details

If:

• The database format is modified
• The config files' format is modified

Then then app will break for existing users since their database and config files will not be updated (since /local is in .gitignore

What needs to be done to allow changing the database format/config files
Develop a mechanism to store versions of the \local folder format and write code to upgrade a users \local folder with each version change.