Make a portable version

[watfordjc]

Progress

• Commit a2ece0b added detection of whether or not running application is installed:
  • If installed, continue using %LOCALAPPDATA% for data and settings.
  • If running from a folder, store data in the same folder.
• If running from a folder, store settings in the same folder.

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Background

Testing of the .zip file version of release 0.0.4 revealed that settings, JSON, etc. are stored in %LOCALAPPDATA% as expected.

The only thing preventing the "Files" version from meeting the definition of portable software is the location of such files.