Version 0.1.5.0 Release

Lots of additions!

- Refactored CSVHandler to DataHandler (changed to custom data
format...)
- Program now successfully writes data based on the selected frame
- Program updates (correctly) now all Frame information back to the
TestFrame object
- Added numerous explanatory comments throughout
- Made DebugWindow fixed, and main window unable to re-size
- Eliminated unused properties from TestFrame and DataHandler classes
- Bug fixes throughout!