Query parameters without any value are ignored.

[jocelyn]

Parsing ?foo=123&bar&foobar=456

will add on foo' andfoobar' to the query parameters, and ignore `bar'

Solution: handle `bar' as empty parameters, then have foo, bar and foobar query parameters.

note: this also impact the URI template matcher code.

[jocelyn]

fixed by 9499601
(2013-sept-09)