removes comment
Updated core nuspec to include Examine
Fixes: U4-5118 Examine not storing XML fragments - updates to latest examine
Merge remote-tracking branch 'origin/6.2.1' into 7.1.5

Conflicts:
	build/NuSpecs/UmbracoCms.Core.nuspec
	src/Umbraco.Tests/Umbraco.Tests.csproj
	src/Umbraco.Tests/packages.config
	src/Umbraco.Web.UI/packages.config
fixes dll ref
Merge remote-tracking branch 'origin/6.2.1' into 7.1.5

Conflicts:
	src/Umbraco.Tests/Umbraco.Tests.csproj
little bit of code cleanup
Merge remote-tracking branch 'origin/6.2.1' into 7.1.5

Conflicts:
	src/umbraco.cms/businesslogic/Packager/Installer.cs
Fixes: U4-5121 umbraco.content launches threadpool threads to reload the xml cache which causes lots of other issues