[Bug] Cannot submit fixed Set Grid dialogue

[adotor]

Version: Foundry 0.8.8

It is not possbile to submit the "Set Grid" dialogue. An error is raised.

Uncaught Error: ReferenceError: validateForm is not defined
    at Dialog.submit (foundry.js:20453)
    at Dialog._onClickButton (foundry.js:20412)
    at HTMLButtonElement.dispatch (jquery.min.js:2)
    at HTMLButtonElement.v.handle (jquery.min.js:2)

Steps to reproduce:

1. Create scene and Add map
2. Set Grid and Submit

[jbhaywood]

If this is still a problem, you can open an issue in the new repository location here.