Feature Request: optional flag icon

[hugosolar]

Is your feature request related to a problem? Please describe.
CC UK said: " Is there any way we can get the flag taken off the header? One of my first jobs is to get sections for all the nations in the UK set up on the site and the flag is seen as very decisive in some sections of society in the UK."

Describe the solution you'd like
Add an option to make the flag optional