change req.params to an object instead of an array
remove binary
refactor req.is and req.accepts*
improve history.md
Merge pull request #1835 from visionmedia/change-req-params-to-object

change req.params to an object instead of an array
history: req.params
Value parameter of app.set() should be typed optional Object
Value parameter of app.set() is now typed optional mixed
Merge pull request #1890 from oliversalzburg/patch-1

Value parameter of app.set() should be typed optional Object
Update layout.jade
Merge pull request #1892 from matheusazzi/patch-1

Update to valid Jade Doctype