for same reasons as 3954133f users
sometimes want a report with not so many details by in spreadsheet
format.

/reviewed-on nexedi/erp5!358

/reviewed-on nexedi/erp5!323

author: Sven Franck

to be consistent with *_action role requirements.

The test that was checking for web_view action output of a
portal_type in a web site had too much hardcoded values,
making the test inconsistent in some way.

erp5_post: Sort the post list when fetching the content from database. And only get the post which state is "published".

The comment user field in the listbox which list Support Requests should show
the latest person who left comment.