Code Tutor, Version 4.0.4

• Rewording: unlocked hidden "password" -> discovered hidden "secret word"

Code Tutor, Version 4.0.3

• Fixed #37 (make sure to close audio after said bye)

Code Tutor, Version 4.0.2

Bug fixes:

• Fixed #35 (feedback auto-fill form)
• Fixed #33 (sound effects run code step)

Code Tutor, Version 4

• Updated to V2 of Dialogflow's API.
• Partially implemented sandbox feature.

Code Tutor, Version 3

• Enable upcoming security patches to node.
• Sandbox undo.
• Extra sound effect on close.
• Shorter messages.
• Loop times: "once" or "twice" accepted too, besides numbers.
• Screenshots of Dialogflow intents for reference.

Code Tutor, Version 2

• "String images"
• Example
• Sandbox