Add an exclude page parameter to the task report macro

We'd like to use the meeting-notes and tasks features on a weekly basis. To do this, we have a section called "Open Items" which uses the task report macro to collect all incomplete tasks from previous meeting notes. The second section is titled "New Action Items" where we would add any additional items needed attention that week. The problem with the meeting notes and task macros, is that either tasks get copied from week to week, and show up multiple times, or the new actions are included in the open items list, again being redundant.

If the task macro had the option to exclude @self, this would clean things up quite a bit. If the macro could exclude the current page and any page created after a specified date, it would also keep historical meeting-notes pages accurate.