Merge remote-tracking branch 'origin/dev-v7' into 7.4.0

Conflicts:
	build/InstallGit.cmd
	build/UmbracoVersion.txt
	src/SolutionInfo.cs
	src/Umbraco.Core/Configuration/UmbracoVersion.cs
	src/Umbraco.Web.UI/Umbraco.Web.UI.csproj
	src/Umbraco.Web.UI/Umbraco/config/lang/nb.xml
	src/Umbraco.Web/Editors/DataTypeValidateAttribute.cs
	src/Umbraco.Web/Security/Identity/UmbracoBackOfficeCookieAuthOptions.cs
	src/Umbraco.Web/WebServices/SaveFileController.cs

src/SolutionInfo.cs

@@ -2,7 +2,7 @@
 using System.Resources;
 
 [assembly: AssemblyCompany("Umbraco")]
-[assembly: AssemblyCopyright("Copyright © Umbraco 2015")]
+[assembly: AssemblyCopyright("Copyright © Umbraco 2016")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]