Bump version to 0.8.1

bump version

version bump

update changelogs for release

version bump

version bump

Merge pull request haskell-servant#429 from haskell-servant/add-auth-…

…to-tutorial-toc

include Authentication.lhs in tutorial project and table of contents

Merge branch 'pr'

Merge pull request haskell-servant#416 from haskell-servant/jkarni/ba…

…sic-auth-tutorial

Add basic auth to tutorial

Update servant-js changelog