Changed TreeModel functionality of CanFetchMore() and FetchMore(),
to add children which have been fetched already.
Previously these children were not added to the model,
they were fetched somewhere else.
Added a ctkXnatListModel which is based on
ctkXnatProjectListModel but it has different headerData.
It can be used for all types of ctkXnatObjects.
Deleted the no more necessary ctkXnatProjectsListModel.
Added a virtual method to ctkXnatObject for getting the child type.
Overwrited this method in ctkXnatDataModel and ctkXnatProject.
Changed the ctkXNATBrowser models to generic ctkXnatListModel.
Litte Changes to ctkXnatTreeModel.
Merge remote-tracking branch 'danielknorr/xnatinterface-mitk-support' into xnat-support
Use new qRestAPI hash
We need to explictily open the session.
The password for the ctk account has expired.