Index for paging is not deterministic

[kfangw]

Transaction and Operation API support paging.
To make a page, the cursor is needed.

The cursor is derived from LevelDB Index Key
The Index key is a combination of several data with postfix(uuid).
The uuid is not deterministic among NODEs
Hence, when a client calls the API with the cursor, it is slightly different for each NODEs

To overcome this problem,
#765 should be merged.