Dynamic domain, fixed Subdomain

[swarnat]

We need the feature to use a fixed subdomain and get the domain as dynamic parameter.
Implementation was easy: We added the dot as separator before parameters.

With another modification, We are not fully sure, if there are side effects. All tests passes.
Now we only add a slash add beginning of $url, when the route start with a parameter.

I don't think there are side effects, because the prefix slash is only need to match on routes, which start with a parameter. Otherwise there are existing separators in url.
But it is not fully clear, why a separator is needed, because regular expressions also match without one.

We would adjust the solution, depending on feedback.

To check all options, we need a "debugOutputNoReset" function in TestRouter, we also commit.

[DeveloperMarius]

Hello,

nice implementation, but can you provide an example where you need a dynamic second level domain?

~ Marius