Semantic menus have wrong classes

[1jerry]

using example Invoices.
Main menus are using Bootstrap classes. Attached is a diff file that fixes that.

fix classes.diff.txt

[perak]

@1jerry thanks for reporting, but this is not a bug.

Classes are hard-coded into input file, see here:

https://github.com/perak/kitchen-examples/blob/master/example-invoices/example-invoices.json#L198

https://github.com/perak/kitchen-examples/blob/master/example-invoices/example-invoices.json#L208

etc.

But, I agree that examples should not have any frontend framework specific classes.