Route.interpolate() generates route without trailing "/" if optional param

[khakulov]

This route works fine:

var route1 = crossroads.addRoute('news/{id}/');
route1.interpolate({id: 123});   // "news/123/" --> OK
route1.interpolate({id: 'foo'}); // "news/foo/" --> OK

var route2 = crossroads.addRoute('news/:id:/');
route2.interpolate({id: 123});   // "news/123/" --> OK
route2.interpolate({}); // "news//" --> don't make sense but OK

var route3 = crossroads.addRoute('news:?query:');
route3.interpolate({query: {id: 123}});   // "news?id=123" --> OK
route3.interpolate({}); // "news" --> OK

But this route has no trailing:

var route2 = crossroads.addRoute('news/:id:');
route2.interpolate({id: 123});   // "news/123" --> OK
route2.interpolate({}); // "news" --> WTF --> must be news/

var route4 = crossroads.addRoute('news/:?query:');
route4.interpolate({query: {id: 123}});   // "news/?id=123" --> OK
route4.interpolate({}); // "news" --> WTF must be news/

[millermedeiros]

the main issue here is that I'm using RegExp to generate the routes while I should really be using something smarter to do that.. should not be that hard to fix but I probably won't have time to work on it for now. sorry about the huge delay.