(fix) Temporary hack for travis.
(refactor) Changed Ingot to Middleware.
(refactor) Updated example to use Middleware.
Merge pull request #47 from zzmp/refactor/ingot-to-middleware

(refactor) Change Ingot to Middleware.
(doc) Updated Alloy for Middleware.
(doc) Updated Furnace for Middleware.
(doc) Updated Iron for Middleware.
(doc) Updated Middleware for Middleware.
(doc) Updated README for Middleware.
Merge pull request #48 from zzmp/doc/ingot-to-middleware

(doc) Change Ingot to Middleware.
(doc) Documented Request.
(doc) Documented Response.
(doc) Documented Middleware.
(doc) Documented Furnace.
(doc) Deny missing documentation.
Merge pull request #50 from zzmp/doc/deny-doc

(doc) Finish documentation.
(feat) Added ServeFile trait to Response.
(doc) Documented ServeFile trait.
Merge pull request #49 from zzmp/feat/response-send

(feat) Add file-serving to Response.
(feat) Scaffolded for mime support.