Fix validation messages of create template form
Fix validation messages of create template form

The invalid name message of new template is shown with the default
template name.

How to reproduce:
* Click the "Template it" button.
* Write a invalid template name.
* Focus to another form input.
* Messages about invalid name are shown.
* Click the Cancel button.
* Click again the "Template it" button.
* The default name for the new template are rewrited but messages about
invalid name are shown yet.

There are two validators, so this commit fixes it running those again.

To be effective, the validator.js must be run after the modal has been
shown.

isard-vdi/isard,isard-vdi/isard,isard-vdi/isard,isard-vdi/isard,isard-vdi/isard