add unit tests (issue #7)
add unit tests (issue #7)

This version introduces multiple enhancements:

fixed tests for simple xml data

Details of additions/deletions below:
--------------------------------------------------------------

Modified:   Test/ObjectTest.php
            -- Added --
                _convertType allow to convert arrays or boolean information to string
            -- Updated --
                testCreationSimpleXml launch type convert before assertion
                _exampleSimpleXmlData launch type convert before insert data into xml

bluetree-service/container,bluetree-service/data,chajr/class-kernel,chajr/class-kernel,bluetree-service/collection