A Web Master generally does upkeep/maintenance of the website, minor modifications/customisations, content updates, maybe some social media stuff. "A little bit of everything but not a lot of any thing".
People sometimes give it a different title these days but I don't see why Web Master isn't still valid.
http://en.wikipedia.org/wiki/Webmaster
"A little bit of everything but not a lot of any thing".
I don't think wearing many hats has to mean you're subpar with a specific hat; just like having hobbies doesn't make you less of a front end developer, neither does having an eye for design or people skills or knowing backend stuff. It's not like everybody who wears just one hat always and automatically masters that subject, that's just a fallacy. To the contrary, we all know that having expertise in wildly varying fields can inform and enhance the creative and analytical processes a great deal. Too little focus is bad, but so is too much focus (or, "specialization is for insects").