QPID-4377: Update trunk versions to 0.21

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1411381 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: remove version from backup script, the referenced jar is now in the qpid-all.jar manifest already

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1411615 13f79535-47bb-0310-9956-ffa450edef68
QPID-4447: C++ Client can hang during connect if heartbeat disconnect fires

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1411750 13f79535-47bb-0310-9956-ffa450edef68
QPID-4449 - Fixed the API in qpid::management::Manageable to remain backward compatible.


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1411761 13f79535-47bb-0310-9956-ffa450edef68
QPID-4450 - Don't generate QPID_BROKER_[CLASS_]EXTERN when the generated code is for
a standalone (not in-broker) agent.


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1411780 13f79535-47bb-0310-9956-ffa450edef68
QPID-4441: Improve BDB store upgrade tests to cover the upgrade of configuration for queues having creation arguments

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412203 13f79535-47bb-0310-9956-ffa450edef68
QPID-4448: fix credit checking on 0-10 path when message is of 1.0 format

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412239 13f79535-47bb-0310-9956-ffa450edef68
QPID-4451: wait for outgoing messages to settle when closing

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412241 13f79535-47bb-0310-9956-ffa450edef68
QPID-4452: fix credit for producers

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412242 13f79535-47bb-0310-9956-ffa450edef68
QPID-4453 : [AMQP 1.0 JMS Client] ObjectMessage /w no body improperly converted to an AMQP message.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412270 13f79535-47bb-0310-9956-ffa450edef68
QPID-4455 : [AMQP 1.0 JMS Client] Queue browsers were not returning jms messages.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412280 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: update curent release number following branch for 0.20 release


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412358 13f79535-47bb-0310-9956-ffa450edef68
QPID-4456: ensure the broker plugins get packaged in the release binary and added to the classpath. Create opt directory for later use by users and update docs accordingly.


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412359 13f79535-47bb-0310-9956-ffa450edef68
QPID-4458: remove the gentool/lib folder, retrieve the velocity dependencies using Ivy, remove seemingly unused common/protocol-version.xml file.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412380 13f79535-47bb-0310-9956-ffa450edef68
QPID-4458: revert changes in r1412380, a CI build failure after a clean checkout showed there is a usage path the changes didnt cover


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412726 13f79535-47bb-0310-9956-ffa450edef68
QPID-4461: remove spaces to ensure the log prefix/suffix options are passed correctly following prior changes to argument construction

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412822 13f79535-47bb-0310-9956-ffa450edef68
QPID-4459: settle sent messages once they have been accepted by peer

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412960 13f79535-47bb-0310-9956-ffa450edef68
QPID-4460: Replenish credit to cover specified prefetch if it is drained

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412961 13f79535-47bb-0310-9956-ffa450edef68
QPID-4464: set container name when sending open

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412962 13f79535-47bb-0310-9956-ffa450edef68
QPID-4465: check subject before setting filter

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1412963 13f79535-47bb-0310-9956-ffa450edef68