Changes on 10-03-17:

• Added a 'Last updated' field to @SOUNDPACKS. Currently, this value is set to the date your soundpack was first created with @REGISTER-SOUNDPACK. For soundpack maintainers, altering the version of your soundpack will automatically update this.
• Updated soundpack environment hooks to display whether a room is indoors or outdoors. The HELP file for soundpack hooks has subsequently been changed to detail this.