playframework/Play20 — pull request #322 by julienrf (2012-05-17 12:42:20+00:00)
Title: Fix default parameters support of javascript reverse router

Provided the following route:
```
GET /foo controllers.App.foo(bar ?= "baz")
```
This patch fix the behavior of the generated javascript reverse router so one can write the following:
```javascript
routes.controllers.App.foo().url; // '/foo?bar=baz'
routes.controllers.App.foo(null).url; // '/foo?bar=baz'
routes.controllers.App.foo('bah').url; // '/foo?bar=bah'
```