Nxs items now do not support the concept of version

timestamp has been added to grp sync item 
updated data service and grps to deal with this
added msg and grp meta types which serves to hold meta data of grp and msg 
removed observer temporarily 

updated nxs item tests, need to update data service tests

git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.5-new_cache_system@5256 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/gxs/rsgxsdata.h

@@ -0,0 +1,85 @@
+#ifndef RSGXSMETA_H
+#define RSGXSMETA_H
+
+#include <string>
+
+#include "serialiser/rsserial.h"
+#include "serialiser/rstlvbase.h"
+#include "serialiser/rstlvtypes.h"
+#include "serialiser/rstlvkeys.h"
+
+class RsGxsGrpMetaData
+{
+public:
+
+    RsGxsGrpMetaData();
+    bool deserialise(void *data, uint32_t &pktsize);
+    bool serialise(void* data, uint32_t &pktsize);
+    uint32_t serial_size();
+
+
+    std::string mGroupId;
+    std::string mOrigGrpId;
+    std::string mGroupName;
+    uint32_t    mGroupFlags;
+    uint32_t    mPublishTs;
+    std::string mAuthorId;
+
+
+    RsTlvKeySignature adminSign;
+    RsTlvSecurityKeySet keys;
+    RsTlvKeySignature idSign;
+
+
+
+    // BELOW HERE IS LOCAL DATA, THAT IS NOT FROM MSG.
+
+    uint32_t    mSubscribeFlags;
+
+    uint32_t    mPop; // HOW DO WE DO THIS NOW.
+    uint32_t    mMsgCount; // ???
+    time_t      mLastPost; // ???
+
+    uint32_t    mGroupStatus;
+
+};
+
+
+
+
+class RsGxsMsgMetaData
+{
+public:
+
+    RsGxsMsgMetaData();
+    bool deserialise(void *data, uint32_t *size);
+    bool serialise(void* data, uint32_t *size);
+    uint32_t serial_size();
+
+    std::string mGroupId;
+    std::string mMsgId;
+
+    std::string mThreadId;
+    std::string mParentId;
+    std::string mOrigMsgId;
+    std::string mAuthorId;
+
+    RsTlvKeySignature pubSign;
+    RsTlvKeySignature idSign;
+
+    std::string mMsgName;
+    time_t      mPublishTs;
+    uint32_t    mMsgFlags; // Whats this for?
+
+    // BELOW HERE IS LOCAL DATA, THAT IS NOT FROM MSG.
+    // normally READ / UNREAD flags. LOCAL Data.
+    uint32_t    mMsgStatus;
+    time_t      mChildTs;
+
+};
+
+
+
+
+
+#endif // RSGXSMETA_H