No need for this to be a .in file

Fixes #408

Reviewed-by: Stef Walter <stew@redhat.com>
Fix a copy-paste error

Reviewed-by: Stef Walter <stew@redhat.com>
web: A basic container commit to image dialog

This doesn't have validation yet, and doesn't support all options
but enough to show the concept and get started.

Closes #409