Merge pull request #118 from pwschmidt/master

MOBSDK-480/481/486
MOBSDK-567: Updating properties of a node is issuing 2 PUT requests
Also added request body to log file when TRACE level is set.
Merge pull request #121 from gavincornwell/master

MOBSDK-567: Updating properties of a node is issuing 2 PUT requests
Fix crash in unit test.
Merge pull request #122 from gavincornwell/master

Fix crash in unit test
latest version of site caching and new features