Merge 'is_resultset_paginated' into 'trunk'

r7777@Thesaurus (orig r7765):  frew | 2009-10-07 20:05:05 +0200
add method to check if an rs is paginated
r7778@Thesaurus (orig r7766):  frew | 2009-10-07 20:31:02 +0200
is_paginated method and test
r7780@Thesaurus (orig r7768):  frew | 2009-10-09 06:45:36 +0200
change name of method
r7781@Thesaurus (orig r7769):  frew | 2009-10-09 06:47:31 +0200
add message to changelog for is_paged