Cache AspNet hosting permission level
Fixes object extensions and tests

Conflicts:
	src/Umbraco.Core/ObjectExtensions.cs
	src/Umbraco.Tests/ObjectExtensionsTests.cs
Merge remote-tracking branch 'origin/6.2.0' into 6.2.0
Fix for U4-3432Rollback Dialog - CreateDate/Creator formatting tweaks required
Merge pull request #180 from Jeavon/U4-3432

Fix for U4-3432Rollback Dialog - CreateDate/Creator formatting tweaks
Fixes: U4-2241 Native Multi-node tree picker in Member Types: Saving clears selected items
Merge remote-tracking branch 'origin/6.2.0' into 7.0.0

Conflicts:
	src/Umbraco.Web.UI/umbraco/members/EditMember.aspx
	src/Umbraco.Web/Umbraco.Web.csproj
	src/Umbraco.Web/umbraco.presentation/umbraco/members/EditMember.aspx.cs