Prevent crash when shape->Handle is NULL

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35301
Altered COBie to get coordinates and write coordinates correctly usin the new ModelServer code

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35468
Fix to resolve omission of Faceted Models such as Site meshes being omitted

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35487
Problems with Surface Styles of elements not being correctly interpretted resolved

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35519
Error in parsing IfcPerson resolved . Strings were not being explicitly cast to IfcLabel

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35520
Support for models with sites typically located in a geographical coordinate system. A new class XbimPlacementTree has been added which builds a model displacement tree and removes large displacements and creates a WCS adjustment that is available through the XbimRegion object for any given geometric context. This solves alignment problems in such models due to double precision inconsistencies. Support for the IFC WCS has also been added to XbimModel and XbimModelFactors

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35552
IXbimRepository Interface added

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35754
Depth added to Retrieve of IXbimRepository

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35755
Fixed a bug in Xbim.Analysis with duplicate keys, and uncommented code for version comparison

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35771
Added some missing TypeIDs.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35837


git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35982
Development of our own express schema parser started. It is not fully functional yet but actual definition of gramma is finite.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C35985
SharedMgmtElements added

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C36020
Grammar is complete for IFC2x3 and IFC4 schema files except complicated rules and functions. These are handeled as a catched errors so it should be possible to implement them later or to fill in missing code manually in case it is used tor automated creation of the data model.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C36021
IFC property sets support. New project added which implements the schema of IFC property sets. This project is independent so far as the XSD schema is independent of the IFC schema itself.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C36056
Improvements for properties and implementation of quantities for IFC4.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/XbimFramework/Dev/ModelServer;C36074
Problems with history. blatted everything to match up with TFS (problem with gti-tfs and branch delete/rename)