participants-database.php
spelling correction

PDb_List_Query class
refactored to improve use by aux plugins
added support for where clause grouping
added clear_background_clauses($name) method for removing shortcode filters on individual fields
added set_clause_grouping() method for default automatic clause grouping

PDb_List_Query_Filter class
added support for grouping

PDb_Record_Item class
values property now includes all raw field values


PDb_Template class
added form element methods: get_form_element() and print_form_element()

xnau_FormElement class
added support for multiselect dropdowns

git-svn-id: https://plugins.svn.wordpress.org/participants-database/trunk@967149 b8457f37-d9ea-0310-8a92-e5e31aec5664
update version to 1.6 beta 6

git-svn-id: https://plugins.svn.wordpress.org/participants-database/trunk@967153 b8457f37-d9ea-0310-8a92-e5e31aec5664