4.9.1

• Fix app.use to accept array of middleware without path
• deps: depd@0.4.5
• deps: etag@~1.3.1
• deps: send@0.9.2
  • deps: depd@0.4.5
  • deps: etag@~1.3.1
  • deps: range-parser@~1.0.2
• deps: serve-static@~1.6.2
  • deps: send@0.9.2