add n-depth inclusion syntax+discussion

Love it! Minor concern as it muddies the meaning of the pipe, making inclusion syntax a little less accessible to people first encountering it. On the flipside, adding a new symbol would also complexify the markup, so it's maybe the same amount of hurdle-raising either way. --John

Also the subject of Circle 25: new inclusion syntax.

{{Image+*type+by_name|open;show:menu|titled;size:small}}

{{Image+*type+by_name|open;show:menu;item:titled}} (old way - can't specify size of images)

{{Pointer+*type+by_name|closed|titled;show:menu|name}}

{{Wagn 1.12+open tickets|titled|titled;show:title_link;structure:short ticket view}}