Flexible multiple AT app configuration

[Henrik Nilsen Omma <henrik ubuntu com>]

Hi All,

George has written a first version of a tab for Preferred Application 
where one can select the ATs for different categories and whether they 
should launch at boot.

Some people have concerns about the classification of ATs (should 
gnome-mag be launchable from here, is if fair to put Dasher in the 
'Other' category by itself, etc.) It seems that a more flexible approach 
is called for.

Using Ubuntu's Add/Remove Applications as a reference point I started 
playing with a mock-up of a possible solution.

http://people.ubuntu.com/~henrik/images/ubuntu-add-apps.png
http://people.ubuntu.com/~henrik/images/flexi-at-conf.png

A scrolling list contains all the ATs installed on the system and a 
check mark next to it shows whether it starts on boot. The order of the 
entries can be changed, with the first entry starting first.

Applications installed on the system will appear in the list 
automatically and the user can add custom applications to the list with 
the Add button. These can also be removed with the Remove button. For 
system-installed applications the Remove button is greyed out.

The Start button launches the application directly and the Configure 
button opens the application configuration window, both if applicable.

Clicking the Add button opens the gnome dialog used to add application 
launchers to the panel: 
http://people.ubuntu.com/~henrik/images/add-to-panel.png (or we may need 
a version with a few extra options like command for config panel)

This is again fairly AT-specific so my inclination would be to place it 
back under Assistive Technology Preferences instead of Preferred 
Applications.

Henrik