Merge 'trunk' into 'mssql_top_fixes'

Merge 'trunk' into 'mssql_top_fixes'

r6734@Thesaurus (orig r6733):  ribasushi | 2009-06-20 10:16:02 +0200
todoify skip
r6736@Thesaurus (orig r6735):  ribasushi | 2009-06-20 12:37:52 +0200
Clarify test
r6740@Thesaurus (orig r6739):  ribasushi | 2009-06-20 15:22:06 +0200
Disambiguate populate() return
r6743@Thesaurus (orig r6742):  ribasushi | 2009-06-20 23:30:23 +0200
 r6737@Thesaurus (orig r6736):  ribasushi | 2009-06-20 12:39:34 +0200
 new branch to streamline count() and introduce count_rs()
 r6738@Thesaurus (orig r6737):  ribasushi | 2009-06-20 12:44:09 +0200
 Add count_rs, move the code back from DBI - leave only sql specific hooks
 r6739@Thesaurus (orig r6738):  ribasushi | 2009-06-20 12:54:11 +0200
 Test count_rs
 r6742@Thesaurus (orig r6741):  ribasushi | 2009-06-20 23:30:10 +0200
 More tests and a really working count_rs