Some documentation added to LTRSite.

Logging implemented.

Change-Id: I4e702b87ee275afbe7d62efe169b306866e45e02
Removed some misworking code from LTR Site (related to serialization)
Merge changes Idecdea73,I4e702b87

* changes:
  Removed some misworking code from LTR Site (related to serialization)
  Some documentation added to LTRSite.