Incident Event data not saved in script xml file

[jdalbey]

Steps to reproduce:
Start ScriptBuilder and create a New Incident.
Add a CAD event and supply "Hello World" for the CAD Log text.
Close the event window and save the script.
Open the saved script file in a text editor. The CAD Event tag exists, but the CAD Log text is absent.
These seems to be the case for all event types.

[bmcguffin]

This bug only seems to appear if the user does not press "enter" before closing the event editor window. Pressing "enter" triggers a write to the data structure representing the event and so saves the data. I should be able to change it so that pressing any key triggers the write, so the file is always up to date.

[bmcguffin]

I removed the key listeners altogether in favor of a window close listener at the top level. When the window is closed, the panels are all notified and update their corresponding models.