Applied patch for CMIS-831: MacOS target incompatibility issues

git-svn-id: https://svn.apache.org/repos/asf/chemistry/objectivecmis/trunk@1619041 13f79535-47bb-0310-9956-ffa450edef68
Updated version number to 0.5

git-svn-id: https://svn.apache.org/repos/asf/chemistry/objectivecmis/trunk@1619055 13f79535-47bb-0310-9956-ffa450edef68
Fixed https://issues.apache.org/jira/browse/CMIS-838 (Property definition default value is not being parsed by either binding)

git-svn-id: https://svn.apache.org/repos/asf/chemistry/objectivecmis/trunk@1619684 13f79535-47bb-0310-9956-ffa450edef68
Minor adjustment to conditional include for CMIS-831, strangely TARGET_OS_MAC is always set to 1 so the code was not being included for iOS target.

git-svn-id: https://svn.apache.org/repos/asf/chemistry/objectivecmis/trunk@1619720 13f79535-47bb-0310-9956-ffa450edef68