(fix) Fixes #15, remove special case handling.
Merge pull request #16 from iron/fix/mask-doc-as-file

(fix) Remove special case handling.
(feat) Added OriginalUrl.

This commit adds OriginalUrl, a simple tuple-struct that contains the original,
unmodified path so that middleware which needs it can have access.
Merge pull request #19 from iron/feat/original-url

(feat) Added OriginalUrl.
(fix) Publicized OriginalUrl tuple.
Merge pull request #20 from iron/fix/publicize-original-url

(fix) Publicized OriginalUrl tuple.
(fix) Updated for FromFn.
Merge pull request #21 from iron/fix/from-fn

(fix) Updated for FromFn.
(doc) Updated README from template.
(doc) Updated README.
(doc) Replaced Cargo with Cargo.toml.