#920338 by pontus_nilsson, jimbullington: Modify webform list query to use webform_node_types for compatibility with Webforms version 6.x-3.x

prefix compatibility.

empty($last_value) on line 90

function itself, so as to avoid the impression that the page is
update-able by users who have only create permission.

drupal_goto functions and replaced with form redirects.

there wouldn't be a perceived double-submit when entering filter
values after selecting a filter_type.

- add default value for $node->sort_col before is_array check preceding
array_multisort in body content function
- fix return value check in publish function to use form_get_errors()
- remove redundant fieldset in criteria form
- add missing fields 'sort' and 'results_per_page' in webform_report_update

Bug fix for update from 5.x-2.2

didn't already exist.

the report criteria form when creating a webform report. Subsequent
updates are still denied unless the user also has edit permission.

access the criteria form for the purpose of creating a complete report.
Also did some code cleanup in hook_access