DSTokenFrontend is a very confusing name

At the Seattle IPFS hackathon I discussed the pattern of using a frontend contract for consistent access to a token system. After a while, I referred to "the token's frontend" and no one knew which one I was talking about!! a website or the contract?? The overwhelming consensus was that using Frontend for this type of contract was almost maliciously confusing.

Start by locating the DSTokenFrontend contract and every reference to its name. Decide on an unambiguous replacement with the maintainers, then update the references consistently and verify that the token system still uses the renamed contract.

Written by the indexing model from the issue text.