Special event & Minor bug fixes / changes. More info on special event coming soon...

-Added Bangboo > boss & extension minigame  
-Added Bangboo Buddies Extension on twitch

-Added minor increase to default extension data upload limit.  
-Added Import/Export for custom commands/scripts! More work needs to be done before included on workshop...  
-Added Lua Scripting > new event: 'selectInitialAvatar' which is created to allow a script to handle which avatar a viewer will spawn in with by using the gift command.  
-Added General > Avatar Settings > Force one free avatar (this is to allow restricting all avatars in shop editing and using the new lua event to gift one during avatar creation)

-Added General > Extension > Join command messages (twitch extension wont be functional until update)  
-Added General > Extension > installing message (twitch extension wont be functional until update)  
-Added General > Extension > waiting message (twitch extension wont be functional until update)

-Fixed Commands > Custom Commands > after editing script images it would cause a full close of the command editing ui.  
-Fixed Commands > Custom Commands > editing script images didn't have rename/delete/edit options

-Fixed actions response for invalid target (now includes the command name prefix)