Notes about eval-ing
Delete a blank line
Extract utils -> fs utils
Extract utils -> GUI utils
Add notes about message buffer & message box
Add message box class
Done implementing basic message box
By default, status bar is not vertically resizable
Remove status bar from text edit
Add status bar to main window
Add convenient function to access status bar
Refactor GUI utils
Refactor main window
Placeholder for central widget in main window
Clean up main.rb
Correctly implemented set_central_widget
Using status bar to display temporary message
Trivial note in default document
Refactor
Shortcut management - beginning