[tpm] Renaming the Freshwater-Perl org on Github

[arocker at Vex.Net]

Why not toronto-pm? (It would save some typing.)

>>>  As part of that, I think we should rename the account so that it
>>> better reflects the group rather than an event which has not (yet)
>>> happened.
>>>

How much extra effort would be involved in creating a new account? If the
event happens, wouldn't it be convenient to have separate accounts?