Merge 'trunk' into 'informix'

r8426@Thesaurus (orig r8413):  ribasushi | 2010-01-22 11:35:15 +0100
Moev failing regression test away from trunk
r8431@Thesaurus (orig r8418):  frew | 2010-01-22 17:05:12 +0100
fix name of _is_numeric to _is_column_numeric

r8437@Thesaurus (orig r8424):  ribasushi | 2010-01-26 09:33:42 +0100
Switch to Test::Exception
r8438@Thesaurus (orig r8425):  ribasushi | 2010-01-26 09:48:30 +0100
Test txn_scope_guard regression
r8439@Thesaurus (orig r8426):  ribasushi | 2010-01-26 10:10:11 +0100
Fix txn_begin on external non-AC coderef regression
r8443@Thesaurus (orig r8430):  ribasushi | 2010-01-26 14:19:50 +0100
 r8304@Thesaurus (orig r8292):  nigel | 2010-01-13 16:05:48 +0100
 Branch to extend ::Schema::Versioned to handle series of upgrades
 r8320@Thesaurus (orig r8308):  nigel | 2010-01-14 16:52:50 +0100
 Changes to support multiple step schema version updates
 r8321@Thesaurus (orig r8309):  nigel | 2010-01-14 17:05:21 +0100
 Changelog for Changes to support multiple step schema version updates
 r8393@Thesaurus (orig r8380):  ribasushi | 2010-01-19 13:59:51 +0100
 Botched merge (tests still fail)
 r8395@Thesaurus (orig r8382):  ribasushi | 2010-01-19 17:37:07 +0100
 More cleanup
 r8396@Thesaurus (orig r8383):  ribasushi | 2010-01-19 17:48:09 +0100
 Fix last pieces of retardation and UNtodo the quick cycle
 r8442@Thesaurus (orig r8429):  ribasushi | 2010-01-26 14:18:53 +0100
 No need for 2 statements to get the version

r8445@Thesaurus (orig r8432):  ribasushi | 2010-01-26 14:22:16 +0100
 r8161@Thesaurus (orig r8149):  ovid | 2009-12-18 15:59:56 +0100
 Prefetch queries make inefficient SQL when combined with a pager.  This branch
 is to try to isolate some of the join conditions and figure out if we can fix
 this.

 r8166@Thesaurus (orig r8154):  ovid | 2009-12-18 18:17:55 +0100
 Refactor internals to expose some join logic. Awful method and args :(

 r8319@Thesaurus (orig r8307):  ovid | 2010-01-14 15:37:35 +0100
 Attempt to factor our alias handling has mostly failed.

 r8330@Thesaurus (orig r8318):  ribasushi | 2010-01-15 03:02:21 +0100
 Better refactor
 r8332@Thesaurus (orig r8320):  ribasushi | 2010-01-15 03:14:39 +0100
 Better varnames
 r8347@Thesaurus (orig r8335):  ribasushi | 2010-01-17 11:33:55 +0100
 More mangling
 r8348@Thesaurus (orig r8336):  ribasushi | 2010-01-17 13:44:00 +0100
 Getting warmer
 r8349@Thesaurus (orig r8337):  ribasushi | 2010-01-17 14:00:20 +0100
 That was tricky :)
 r8352@Thesaurus (orig r8340):  ribasushi | 2010-01-17 15:57:06 +0100
 Turned out to be much trickier
 r8354@Thesaurus (orig r8342):  ribasushi | 2010-01-17 16:29:20 +0100
 This is made out of awesome
 r8355@Thesaurus (orig r8343):  ribasushi | 2010-01-17 16:46:02 +0100
 Changes
 r8400@Thesaurus (orig r8387):  ribasushi | 2010-01-20 08:17:44 +0100
 Whoops - need to dsable quoting