Merge from Head

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/COBie;C31901
Temporary Visualisation bug fix in explorer.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C32714
WIP MVC4 version

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C32967
Implementation of IfcSharedMgmtElements namespace implemented in Ifc2x3.
Untested as no application exports any of these classes as far as we know.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33046
bugfix: IfcLogical undefined values do not cause errors on save.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33072
Bugfix: Two SharedManagementElements had incorrect order property.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33076
New test investigating a bug claim.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33121
Further detail on federation test case.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33122


git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33126
Bugfix: fixed public marker on IfcRelSchedulesCostItems

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33209
Federation commands cleanup (first step)

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33276
Improved inline documentation on ILayerStyler and related classes.
Much more left to be done on the styling front (federation models are completely unaffected by LayerStylers).

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33282
Further Styler demo added.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33287
WebXplorer environment upgrade

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33315
Changes in the visibility of selected items across transparent entitites.
Added a method to allow the reload of the model without changing camera position.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33328
Further steps to improve WPF viewer ability to reload models.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33336
Bugfix: error in filter string for model saveas.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33361
Improved visual rendering of selected items in response to changes in the transparency slider.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33362
COBie - Zone names now consolidate Spaces so there aren't multiple Zones with the same zone name (previously 1-1 mapping, now 1-many)

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33375
Extended layer behaviour and interface to allow loading the geometry without graphic display.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Head;C33379