New ctor to take initialized DomainDataStructure

[fcallejon]

• Add new ctor to DomainParser to accept an initialized DomainDataStructure.

  35

[tinohager]

You could also put the whole DomainParser in a singletone, where do you see the advantage of your variant?

[fcallejon]

That is another approach alright, but this way I can cache the entire tree the way I see fit (with expiration and so on) independently from the DomainParse and not be hit by itś initialization each time I want to use it.

The MVC singleton change it's just as an example, it can be rolled back.

[tinohager]

@fcallejon Thanks, i have push a new version