Adjust the harness configuration for Ubuntu

Signed-off-by: Evan Broder <evan@ebroder.net>
Modify the harness templates to refer to Ubuntu services

Signed-off-by: Evan Broder <evan@ebroder.net>
Update link to Lintian source

Signed-off-by: Evan Broder <evan@ebroder.net>
Enable both i386 and amd64

Signed-off-by: Evan Broder <evan@ebroder.net>
Switch to the Ubuntu logo

Signed-off-by: Evan Broder <evan@ebroder.net>
Keep the unpacked packages around for convenience

Signed-off-by: Evan Broder <evan@ebroder.net>