In an annoying quest to reproduce a bug related to JSTL and plugins I completely redid the MoTD plugin admin console page. I added CSRF protection to justify my changes.

Never did reproduce that bug...

* OF-1311: Allow lists to be stored in a property.

* OF-1312: Allow SASL mechanisms to be configured in the admin console.

A new property (ldap.encodeMultibyteCharacters) is introduced that controls if multibyte characters in LDAP search queries are escaped.

Escaping of these characters started with the fix for OF-830, which appears to have caused OF-1305. Although I can't say that escaping of characters is wrong (per RFC 4515), it does cause real-world problems.

This fix defaults to not encoding again (reverting back to the behavior pre OF-830, without affecting other changes made in OF-830).

RestAPI plugin, synchronizing invalid room state when creating a room in a clustered Openfire

When creating a room using RestAPI plugin, RoomUpdateEvent should be fired only after the room is fully processed/configured

* run `mvn versions:set -DnewVersion=4.2.0-SNAPSHOT`
* manually edited non-included plugins

This commit introduces some dependencies that were added to Openfire since the original Maven stucture was build. With these, the Maven build should compile again.

(dwr has transitive dependency to it)

The Maven structure is:
-/
--dbutil (used by xmppserver)
--i18n (used by starter and xmppserver)
--starter (launcher and starter package, startup.jar)
--xmppserver (nearly everything in the src dir, openfire.jar)
--webadmin (admin plugin)
--plugins
---broadcast
---...

I've also added Maven plugins to mimic partial behavior of the Ant build (copying dependencies, bin/conf folder, ...)

This commit addresses issues OF-546.

I reconfigured the pom.xmls to work with the existing directory structure, (instead of default src/main/java), so that the current src folder stays untouched.

What it can do:
- Run tests successfully
- Generate JavaDoc
- Assemble most plugin jars (without JSP)
- Assemble admin plugin (without JSP)
- Generate a source zip/tar.gz for distribution (as the download page offers it currently)
- Build the startup.jar and openfire.jar, copy it in the right directory, so that Openfire can be run with `java -jar startup.jar`

What it can't do:
- Build executables for every platform (e.g. install4j, *.dmg, ...)
- Build some plugins (e.g. ofmeet) due to non-Maven dependencies.

Todos:
- Fix these issues
- Move source code to the correct paths, e.g. /src to xmppserver/src/main/java

This was referenced by Openfire as dbutil.jar, but because this cannot be referenced via Maven Central, we add it as module for Openfire.

* OF-1299 / OF-1300: Fixes for XML Debugger plugin.

Causes the plugin to print the remote address, as well as less 'garbage' (compressed and/or encrypted data).

This reverts commit ffe14c90 and hopefully resolves OF-1263 and OF-1269

This reverts commit 508e39e2 and hopefully resolves OF-1263 and OF-1269

OF-1195 Correct SCRAM supported logic

* OF-1278 Recurse more sensibly in SCRAM code

Previously, we called setPassword if (and only if) there was a plaintext password present AND the configuration was for SCRAM hashed passwords only.

However, we would then retest to see if there was a salt present, and then recurse, if there was a plaintext password present.

This meant that if there were pre-existing users (with only plaintext or encrypted passwords) but with no SCRAM information, and the userInfo.salt was unset, recursion would continue indefinitely.

* OF-1278 Recurse more sensibly in SCRAM code

This patch further proofs against infinite recursion, and is more aggressive about SCRAMming pre-existing users.

Recursion is now prevented from being more than one deep, as designed.

Adding elements and attributes to the new element doesn't work, since reparenting the old elements generates an exception. This exception wasn't logged.

* Exception logged
* id attribute copied, if present.
* Elements copied deeply/properly.

Test stanza:

```
<message xmlns="jabber:client" to="blah@conference.cridland.im" type="groupchat" id="5260">
<body>This is a message with a label.</body>
<custom xmlns='tmp:custom'/>
<custom-attr xmlns='tmp:custom2' attr='value'/>
<custom-child xmlns='tmp:custom3'>
<child>element</child>
</custom-child>
<custom-text xmlns='tmp:custom4'>Text here</custom-text>
</message>
```

OF-1288 Add missing attributes

Fix the release date

Treat null array the same as empty array

make sure jars in openfire lib are added to the classpath in predictable order

OF-1282 properly handle setting TLS_CERTIFICATE_VERIFY of false

OF-1270 fix Readme

This adds attributes mandated by MAM, by missing from the rendering in the
PacketExtension.

When evicting cache entries for group members, the members of other
groups that are affected should also be evicted.