Fixes various issues relating to File Repositories and Services: U4-4014 FileRepositories offer no way to create folders, U4-4013 The models that the FileService produces causes security exceptions, U4-3993 Replace system.io calls in umbraco.scriptTasks legacy task

updates to latest CDF
Merge remote-tracking branch 'origin/6.2.0' into 7.0.2

Conflicts:
	src/Umbraco.Core/Persistence/SqlSyntax/SqlSyntaxContext.cs
	src/Umbraco.Core/Persistence/SqlSyntax/SqlSyntaxProviderExtensions.cs
	src/Umbraco.Web.UI/Umbraco.Web.UI.csproj
	src/Umbraco.Web.UI/packages.config
	src/Umbraco.Web/Umbraco.Web.csproj
	src/Umbraco.Web/packages.config
	src/Umbraco.Web/umbraco.presentation/umbraco/create/ScriptTasks.cs
	src/umbraco.cms/packages.config
	src/umbraco.controls/packages.config
	src/umbraco.editorControls/packages.config
	src/umbraco.macroRenderings/packages.config
	src/umbraco.macroRenderings/umbraco.macroRenderings.csproj
Fixes merge issues
Merge branch '7.0.2' of https://github.com/umbraco/Umbraco-CMS into 7.0.2