Fixing acceptance tests by test-driving production code

The Git tag for this section is implementing-new-scenarios.

• When the user clicks on Start sharing, a dialog should appear with a Reset button.
• If the user chooses to reset, the Redux is sent a START_SHARING action with a new reset property that is set to true:

{ type: 'START_SHARING', reset: true }

• If the user chooses to share their existing commands, then the START_SHARING action is sent with reset set to false:

{ type: 'START_SHARING', reset: false }

• When the user clicks on Reset, a RESET action should be sent to the Redux store.
• Sharing should not be initiated until after the RESET has occurred.

Adding a dialog box

Now that we know what we...