Add token support for filenames in Views Export action

This needs some more work:

• Tests are failing, since $this->tokenServices doesn't exist, that's now singular and should be changed to $this->tokenService
• The configuration form field filename needs to be marked for token support with '#eca_token_replacement' => TRUE,
• While being on it, the config form field token_for_filename should get the extra information '#eca_token_reference' => TRUE,

I've now addressed and fixed the issues from #3 and committed that to 2.0.x

As this is a new feature, this won't be back ported to 1.1.x but users who need that there early, can use the patch from the MR!414 which hasn't been used.

jurgenhaas → closed merge request !414

Automatically closed - issue fixed for 2 weeks with no activity.