Merge 'trunk' into 'replication_dedux'

r13492@dev (orig r4434):  matthewt | 2008-05-30 09:36:16 -0500
throw exception for multi-has_many prefetch
r13493@dev (orig r4435):  ash | 2008-05-30 09:40:31 -0500
Make irc/mailing list much more prominent in the docs
r13494@dev (orig r4436):  ash | 2008-05-30 10:13:36 -0500
Tidy up TxnScopeGuard and its tests a bit
r13495@dev (orig r4437):  ribasushi | 2008-05-30 10:19:58 -0500
Adjust prefetch tests to not blow up after r4434
r13496@dev (orig r4438):  castaway | 2008-05-30 10:58:16 -0500
Updating to new doc standard.
Adding more examples of alternate calls.

diff --cc t/03podcoverage.t
Simple merge

diff --cc t/77prefetch.t
Simple merge