* add include files and static library due to problems with AMALGAM'ED

distri and nodeset feature
* add UaModeler project including XML export
* add nodeset using test server

include/server/ua_session_manager.h

@@ -0,0 +1,41 @@
+#ifndef UA_SESSION_MANAGER_H_
+#define UA_SESSION_MANAGER_H_
+
+#include "queue.h"
+#include "ua_server.h"
+#include "ua_util.h"
+#include "ua_session.h"
+
+typedef struct session_list_entry {
+    LIST_ENTRY(session_list_entry) pointers;
+    UA_Session session;
+} session_list_entry;
+
+typedef struct UA_SessionManager {
+    LIST_HEAD(session_list, session_list_entry) sessions; // doubly-linked list of sessions
+    UA_UInt32 maxSessionCount;
+    UA_UInt32 lastSessionId;
+    UA_UInt32 currentSessionCount;
+    UA_UInt32 maxSessionLifeTime;    // time in [ms]
+    UA_Server *server;
+} UA_SessionManager;
+
+UA_StatusCode
+UA_SessionManager_init(UA_SessionManager *sessionManager, UA_UInt32 maxSessionCount,
+                       UA_UInt32 maxSessionLifeTime, UA_UInt32 startSessionId, UA_Server *server);
+
+void UA_SessionManager_deleteMembers(UA_SessionManager *sessionManager);
+
+void UA_SessionManager_cleanupTimedOut(UA_SessionManager *sessionManager, UA_DateTime now);
+
+UA_StatusCode
+UA_SessionManager_createSession(UA_SessionManager *sessionManager, UA_SecureChannel *channel,
+                                const UA_CreateSessionRequest *request, UA_Session **session);
+
+UA_StatusCode
+UA_SessionManager_removeSession(UA_SessionManager *sessionManager, const UA_NodeId *token);
+
+UA_Session *
+UA_SessionManager_getSession(UA_SessionManager *sessionManager, const UA_NodeId *token);
+
+#endif /* UA_SESSION_MANAGER_H_ */