Add view of Hikes in this park to all parks

Given that we have to redo all Views for D6, let's defer this activity until then.

Let's also explore if we can create ONE view for "all hikes in park x" where x is a variable set when the page is executed for display. We don't need hundreds of views that differ only in the extract parameter.

I'll add this to the D6 list as well - if we can do the "view with parameter" solution we might want to implement it for launch as it provides a marketable new feechur!

/view/bypark and /view/park-byregion implemented 8/12/2012