Update button shoud not show if ...

Issue Summary

Hi again,

Once more thanks for the module, it's great.

I think that when using a multiple upload sub-module, you may chose to set the option Amount of uploads fields equal to 0 (at /admin/settings/gallery_assist/assignments) therefore the Update button at gallery node Edit page (within the Gallery Assist (GA): settings Edit & view items) should not show. In that scenario the button doesn't make sense and may confuse users.

Could you hide the button if uploads fields is equal to zero.

Thanks again