Merge 'prefetch_redux' into 'trunk'

Merge 'prefetch_redux' into 'trunk'

r7156@Thesaurus (orig r7153):  robkinyon | 2009-07-30 20:06:04 +0200
Create prefetch_redux branch
r7164@Thesaurus (orig r7161):  robkinyon | 2009-07-31 22:41:01 +0200
Added MooseX::Traits to Makefile.PL
r7172@Thesaurus (orig r7169):  robkinyon | 2009-08-03 05:49:59 +0200
Added two tests and marked one todo_skip
r7187@Thesaurus (orig r7184):  ribasushi | 2009-08-03 17:24:41 +0200
Use goto to preserve correct error-at-line reporting
r7189@Thesaurus (orig r7186):  ribasushi | 2009-08-04 12:34:58 +0200
Add an extra test specifically for distinct/prefetch
Remove duplicate test in count/prefetch

Switch to as_query instead of debug overloading
r7190@Thesaurus (orig r7187):  ribasushi | 2009-08-04 12:35:57 +0200
Fix how a distinct-induced group_by is calculated, taking in consideration the new prefetch mechanism
r7197@Thesaurus (orig r7194):  ribasushi | 2009-08-04 17:31:33 +0200
Traits not needed by anything currently in dbic
r7198@Thesaurus (orig r7195):  ribasushi | 2009-08-04 17:41:14 +0200
Move around tests a bit
r7199@Thesaurus (orig r7196):  mo | 2009-08-04 21:10:57 +0200
prefetch-grouped fails, again
r7204@Thesaurus (orig r7201):  ribasushi | 2009-08-04 22:50:51 +0200
Split the search_related prefetch tests into a standalone testfile
r7205@Thesaurus (orig r7202):  ribasushi | 2009-08-04 23:05:03 +0200
Move norbi's test to prefetch_redux - it's the same idea
r7209@Thesaurus (orig r7206):  ribasushi | 2009-08-05 08:35:48 +0200
Tadaaaa (even more prefetch insanity)