closes #1030

When displaying the details of a certificate, the admin console now also shows
its PEM representation. This is convenient for copy/pasting the certificate into
other tools.

OF-1494: Fix the xmppAddr SAN othername entry in generated certs.

was missed for maven builds previous to 4.2.2 release

Handling xmppAddr being a type of ASN1TaggedObject (i.e. DERTaggedObject) as it fails to cast the xmppAddr to ASN1String to work with CA signed certificates/self-signed certificates generated with OpenSSL.

* OF-1482: Monitoring plugin: MUC MAM responses should have a 'from'.

* OF-1483: Monitoring plugin: restore admin console functionality.

* OF-1455: Allow for bulk property migration.

* OF-1454: New Property-based Provider Mappers.

HZ-8: Preserve Hazelcast network settings between plugin upgrades

HZ-5: Ensure themarkedAsSeniorClusterMember event is fired

npe.

So the full stack trace can be displayed. I also fixed the typo (Unkown -> Unknown).

* Sending message body inside of callback

* Updated version and readme.html

* Updated changelog

* Sending POST request. Better logs. sendBody property.

* Updated readme and changelog. v1.2

* Fixed small bug

OF-891: Ensure that the clusteringStarting/clusteringStarted flags ar…

OF-1475: Update to Hazelcast 3.9.2.

OF-1472: Add basic support for XEP-0157.

OF-1471: Terminate upon invalid Stream Management data.

Allow remotely connected servers to subscribe to local pubsub nodes

OF-1469 New plugin: XEP-0215 External Service Discovery

OF-891: Ensure that the clusteringStarting/clusteringStarted flags are correctly set when clustering starts.

When a client tells us that it received an amount of stanzas that's greater than the number of stanzas
that we've sent it, the stream should be terminated. Similarly, we should not allow a client to resume
a stream when it tells us it received more data on the old stream than what we've sent it.

* OF-1467, Check nodeRoutes.containsKeys(key) to avoid Null Pointer Exception in ClusterListener, nodeCleanup, when there are no sessions on the node to cleanup

* Good point. Tweak to fix as per suggestion.