Relabel transmission options

In regards to #46
As you've both pointed out, since fixing this might be tricky from a technical standpoint, how about we relabel the options so users can make there own informed decisions? Would this patch be ok?
Tweak wording and add warning

For #46
Reword warning for blocklists needing an update

Blocklist settings do not get reset by this cleaner as I originally thought, something must of gone wrong when I was testing.
Merge pull request #48 from tiemay/patch-1

Relabel Transmission cleaner options (thanks to tiemay)