Updated AdaptorConfig (aka TFileAdaptor) for the threaded framework

In principal no changes were actually needed since the service was already being used in a safe way. However, it was unnecessarily exposing member functions which could be misused. The functions were moved to private.
Merge pull request #855 from Dr15Jones/updateAdaptorConfig

Multi-Threading Fixes -- Updated AdaptorConfig (aka TFileAdaptor)