Update spanish translation

OF-929
https://igniterealtime.org/issues/browse/OF-929

OF-929-Add the ability to generate messages in the userCreation plugin (for monitoring plugin tests)

There is a deadlock while reading the state variable if close() is running.

This switches the state to be volatile instead - it's only written to inside
the lengthy close() lock, so this should be reasonable.

OF-889: Added try-catch blocks to the various JSP pages where Session.getHostName or Session.getHostAddress is called to prevent the Sessions tab from showing UnknownHostExceptions when there are bad client sessions laying around

Update the REST API plugin to version 1.1.1

See http://docs.oracle.com/javase/8/docs/technotes/guides/jndi/jndi-ldap.html#pooling

LDAP Connection Pooling is disabled when using a custom ssl socket. The custom
socket was used to accept unsigned/untrusted/expired ssl certs. I removed the
use of the custom socket, and also added the required system property to enable
connection pooling when using SSL, which was missing.

- Reworked file transfer event handling
- Fixed spelling in API (as this change already broke API backwards compatibility).
- Updated ClientControl plugin to reflect these changes.

OF-922: Revert MINA to 2.0.7

The inputClosed method was added during troubleshooting for MINA 2.0.9
and can be removed now that we have downgraded to 2.0.7.

Rollback of this commit for OF-421:
https://github.com/igniterealtime/Openfire/commit/89c06a88d75e15d36ce7f6ace88bbf5c71fb08df

OF-919 Update bundled jDTS driver to 1.3.1

Seems to have been left as the Impl class rather than the Interface itself.

Not included in the original PR, and to my shame I hadn't noticed.

Fix filter ordering and admin console NPE

OF-913 Treat lib/log4j.xml as a config file in installers

Make module loading driven by a file

OF-477 Correct SASLserver to use consistent digest-uri

Deprecate the User Service and MUC Service Plugin.

Addressing DIRMINA-1012

Where ioSession.getRemoteAddress() returns null, this can cause an NPE.

Private Storage should return an error if feature is disabled

Update the REST API plugin to version 1.1.0

OF-892: Adding Admin panel support for mutual authentication.

Order Fastpath Workgroups by Display Name

OF-883: Prevent sending data to known disconnected peers.