remove .request accept tests the fail

due to
https://github.com/expressjs/accepts/commit/5975ce464575bd0fddfdd3d41796
958cd6bfc20b. passing nothing into accepts() is silly anyways.
bump should just because
set-type -> mime-types

removes mime dependencies from the dep tree.
liberally sets charset because some express users complained about bad
browsers using the default charset.
0.6.2
support non-error obj pass to app.onerror, fixed #287