Improve handling of nested lists, trees, null and floating point values.

git-svn-id: https://svn.apache.org/repos/asf/tuscany/sca-cpp/trunk@1428191 13f79535-47bb-0310-9956-ffa450edef68
Add support for HTTP patch and application of patch scripts to server and data store components.

git-svn-id: https://svn.apache.org/repos/asf/tuscany/sca-cpp/trunk@1428192 13f79535-47bb-0310-9956-ffa450edef68