[TASK] Make Form / HasValidator condition validatorName optional

If not specified, the ViewHelper will render the `then` child if the given property has ANY Validator whatsoever.
Merge pull request #291 from NamelessCoder/hasvalidator

[TASK] Make Form / HasValidator condition validatorName optional
[TASK] Trim dots off variables array before passing to Fluid
Merge pull request #292 from NamelessCoder/removedots

[TASK] Trim dots off variables array before passing to Fluid
[TER] 1.8.2