XPLANBOX-2919 - XPlanManagerWeb: GWT RPC XSRF protection

...anbox/core/gwt/commons/client/ValidatorOptionsDialog.java

...lon/xplan/manager/web/client/gui/ImportWizardCreator.java

...on/xplan/manager/web/client/gui/ManagerWebEntryPoint.java

...de/latlon/xplan/manager/web/client/gui/PlanListPanel.java

...a/de/latlon/xplan/manager/web/client/gui/UploadPanel.java

...xplan/manager/web/client/gui/dialog/MapPreviewDialog.java

...tlon/xplan/manager/web/client/gui/editor/EditorPanel.java

...an/manager/web/client/gui/filter/CategoryFilterPanel.java

...tlon/xplan/manager/web/client/service/ManagerService.java

...er/web/client/service/ManagerWebConfigurationService.java

...lon/xplan/manager/web/client/service/SecurityService.java

.../xplan/manager/web/server/service/ManagerServiceImpl.java

...eb/server/service/ManagerWebConfigurationServiceImpl.java

...xplan/manager/web/server/service/SecurityServiceImpl.java

...ger/web/server/service/XPlanMgrValidationServiceImpl.java

...manager/xplan-manager-web/src/main/webapp/WEB-INF/web.xml