Feature - Make page callouts configurable

since verion 6.1.0

If EXT:page_callouts is installed, information is displayed in the page module, if broken links exists.

Since this has a small performance impact, is not really necessary if broken links are fixed regularly etc., this is now configurable via:

• extension configuration: "Show message in page module if broken links exist on page" [showPageCalloutBrokenLinksExist] (default: on)
• user settings: "Show message in page module if broken links exist on page" [tx_brofix_showPageCalloutBrokenLinksExist] in tab "Broken links" (default: on)

The information is only displayed if extension configuration is set to true, the user settings is active and page_callouts is installed (and of course, if broken links exist on that page).