added version.jettison and orbit.version.jettison properties to parent pom

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180586 a5903396-d722-0410-b921-86c7d4935375
jettison version property

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180587 a5903396-d722-0410-b921-86c7d4935375