bug6177 285 B

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  1. o Code simplification and refactoring:
  2. - Add replaycache_t structure, functions and unit tests, for future use
  3. in refactoring rend_service_introduce() for bug 6177.
  4. - Refactor rend_service_introduce() to be more clear to read, improve,
  5. debug, and test. Bug 6177.