* OF-1455: Allow for bulk property migration.

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

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.

", e" added like for the other "Log.warn"

* 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.

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

Currently the endpoint is only available via ws://host:port/ws/

It will now also be available via ws://host:port/ws

(note the lack of the trailing slash).

URLs without trailing slash seem to be the standard for BOSH and WebSockets and are also used by XEP-0156.

 This commit increases interoperability.

When specifying “Show a Specific Number of Messages” for Group Chat
History Settings, the user get one message to many. For example, if 10
is specified. the user get the last eleven messages in the room.

OF-1460, Session Row jspf has a Hazelcast related bug. It assumes that all sessions are LocalClientSessions. But, in a multi-node hazelcast enabled openfire environment, (#997)

there may be remote (not local) sessions as well.  The bug is a cast of sess to LocalClientSession, but that isn't always appropriate. Session Details and Session Summary jspf pages use this jspf file

An option has been added to the registration plugin that allows an administrator to configure
that all newly created user accounts will be locked out automatically after a certain amount
of time has passed.

Shoutout to @jadestorm for having the foresight in 2008, making this possible. :)

* Added User Status Plugin
Plugin from Stefan Reuter to keep a history of the user status in the
database.

* revert unrelated javadoc change

* update plugin versioning

we still have to support ant builds

* update note about supported databases

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