Ignore trailing newline when calculating code size
Group open and save buttons into a dropdown
Add new file link
Refactor
Make title shorter
Refactor & Add Save As button
Use different shortcuts depending on platform
Fix bug in restoring saved session
Use Backspace to delete selected file
Remove unused key codes
Rename methods
Replace jQuery Hotkeys with Mousetrap
Fix bug where file dropdown doesn't hide after click
Update .gitignore
Add UI elements for debug feature

The debug feature is not implemented yet.