Merge 'trunk' into 'new_replication_transaction_fixup'

Merge 'trunk' into 'new_replication_transaction_fixup'

r7028@rkinyon-lt-osx (orig r7027):  caelum | 2009-07-10 17:56:57 -0400
fix PodInherit call in Makefile.PL
r7030@rkinyon-lt-osx (orig r7029):  robkinyon | 2009-07-10 18:03:07 -0400
Applied patch from kados regarding use of a DateTime::Format class to validate
r7031@rkinyon-lt-osx (orig r7030):  caelum | 2009-07-11 05:26:40 -0400
reword IC::DT doc patch
r7038@rkinyon-lt-osx (orig r7037):  dandv | 2009-07-13 08:06:08 -0400
PK::Auto has moved into Core since 2007
r7039@rkinyon-lt-osx (orig r7038):  dandv | 2009-07-13 08:15:13 -0400
Fixed has_many example in Intro.pod
r7040@rkinyon-lt-osx (orig r7039):  dandv | 2009-07-13 16:58:45 -0400
Fixed run-on sentences in FAQ
r7041@rkinyon-lt-osx (orig r7040):  dandv | 2009-07-13 17:18:11 -0400
Minor POD fixes in Example.pod
r7042@rkinyon-lt-osx (orig r7041):  dandv | 2009-07-13 17:48:18 -0400
Favored using ->single to get the topmost result over less readable ->slice(0)
r7043@rkinyon-lt-osx (orig r7042):  dandv | 2009-07-13 18:56:31 -0400
Minor POD fixes in Cookbook
r7046@rkinyon-lt-osx (orig r7045):  ribasushi | 2009-07-14 07:30:55 -0400
Minor logic cleanup
r7047@rkinyon-lt-osx (orig r7046):  ribasushi | 2009-07-14 08:07:11 -0400
grouped prefetch fix