Parent can be passed to ctkXnatObject constructors
Unit test for XNAT object deletion
Proper pointer inizialization
XNAT save function save the properties
Fixed wrong resourceUri for certain xnatObjects
XML schema type used for XNAT objects
Unit test for XNAT object parent-child relationship
Added download function to ctkXnatTreeBrowser
XNAT resourceUri fixes
Merge remote-tracking branch 'niftk-ctk/ctk-xnat-support' into xnat-support