Update Production.md

Added instructions for stopping a Play application that has been started using the start command on Windows. Confirmed working in version 2.1.3
Merge pull request #1941 from kshep92/patch-1

Update Production.md
Set close header when closing HTTP/1.1 connections

Fixes #1958
Merge pull request #1960 from jroper/connection-close-2.1

Set close header when closing HTTP/1.1 connections
Added validate pull request script
Fix build.scala documentation
Merge pull request #2004 from baloo/defects/1135-Build-Doc

Fix build.scala documentation
[#2079] Backport dependency injection documentation
Merge pull request #2080 from baloo/documentation/2079-Dead-link-DependencyInjection

[#2079] Remove dead link about dependency injection
Update ScalaFileUpload.md

Note/hint about limiting size of file uploads
Merge pull request #2149 from calvinkrishy/patch-1

Update ScalaFileUpload.md with note about limiting size