[ubuntu-uk] Tracker Preferences

[Greg K Nicholson]

Stephen Garton:
> On The last tab (Emails) the Enable Evolution email indexing
> is enabled and checked. I don't use Evolution, I use Thunderbird, but
> the option to check the check box is disabled.

Same here.

I noticed that Thunderbird has gone from being a package called 
“mozilla-thunderbird” to being one called “thunderbird” (and the former 
is now a dummy package that depends on the latter). Perhaps Tracker 
expects to find mozilla-thunderbird?