Add urlpathvariable overrides to FitNesseRunner.

[ctrl-space]

First incomplete iteration of adding urlpathvariables to FitNesseRunner.
Feedback welcome.

Thanks,
Claes

[amolenaar]

Hi, I think this is starting to look quite okay. You might want to use a value array, instead of concatenating all properties with `&'. Then the format is closer to Java.

Something like this:

@FitNesseRunner.UrlPathVariables({ "ID=100", "gizmo=true"})

You might want to figure out to what extend the current parser logic (e.g. the Request class) can be used. Some change might be required, but it will keep the code DRY.

(and the variables need to be used somewhere, of course)

[ctrl-space]

Updated annotation and using Request to parse query string. Added urlpathvariables to context.