Bump version
Completes: U4-2633 Bundle all cache refresher transmissions into a single call per request for much better performance
disables dist call
Merge remote-tracking branch 'origin/6.2.1' into 7.1.5

Conflicts:
	build/Build.bat
	build/NuSpecs/build/UmbracoCms.targets
	src/Umbraco.Core/Configuration/UmbracoVersion.cs
	src/Umbraco.Web.UI/Umbraco.Web.UI.csproj
	src/Umbraco.Web/Umbraco.Web.csproj
Merge branch '7.1.5' of https://github.com/umbraco/Umbraco-CMS into 7.1.5