PROTON-205: Set target and source correctly when establishing links

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1441383 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: merged from trunk to this branch (jni-binding) with the commands below

$ svn merge https://svn.apache.org/repos/asf/qpid/proton/trunk .
--- Merging r1441382 through r1441388 into '.':
U    proton-j/proton/src/main/java/org/apache/qpid/proton/messenger/impl/MessengerImpl.java
--- Recording mergeinfo for merge of r1421251 through r1441388 into '.':
 U   .



git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/branches/jni-binding@1441390 13f79535-47bb-0310-9956-ffa450edef68