OF-881: Simplify connection close semantics

- Use AtomicReference instead of synchronized block
- Extend java.io.Closeable; document contract
- Consolidate close/state transition logic

ofmeet plugin version 0.2.3

Simplified build, removed classes folder in WEB-INF
Changed default value for voip gateway to false
Removed some redundant and duplicate jar file in jitsivideobridge lib
Removed tinder.jar and whack.jar which caused ComponentManagerFactory.getComponentManager() to fail with OF 3.11

Avoid recursion and synchronization issues

Update REST API Plugin to 1.1.7

Added: Provide the possibility to use a Custom Auth Filter
Fixed: Preflight request will be not blocked by Authentication
Added: Group names in ChatRoom Entity

Revert "	Fix PluginClassloader not implement getResources Method"

	Fix PluginClassloader not implement getResources Method

RestAPI Plugin - Provide the possibility to use Custom Auth Filter

Now switchoff betweeen the authentication systems seems to work as
intended

Reverting some changes made with PR #239. by enabling the custom socket factory.  Added the use of Comparator per http://docs.oracle.com/javase/8/docs/technotes/guides/jndi/jndi-ldap.html#pooling
  for connection pooling

Reverting some changes made with PR #239. by enabling the custom socket factory.  Added the use of Comparator per http://docs.oracle.com/javase/8/docs/technotes/guides/jndi/jndi-ldap.html#pooling
  for connection pooling

Added readtimeout and connect time out to getcontext

Launcher: Use Desktop.getDesktop().browse().

The BrowserLauncher class seems to be really outdated (from 2001) and it doesn't even launch the browser on my Mac OS X.

Since Java 1.6, there is java.awt.Desktop, which can open a browser as well, so let's use that one.

Launcher: Use Java 6 SwingWorker instead of "Version 3 SwingWorker".

There was an old backport of SwingWorker for JDK < 6 from 2003, which was known as "SwingWorker Version 3".
Openfire does not need such old backports anymore.

Java 7: Collapse identical catch blocks.

Java 7: Replace explicit type with diamond operator <>

OF-343 Add @Override annotations

There were still ~1500 missing annotations! This time fixed with IntelliJ ;-)

Prevent NoClassDefFoundError during Openfire start.

Restore tray icon click functionality after moving to AWT tray.

Fix JDK 8 ambiguity with wildcard imports.

Clean plugins directory when calling Ant "plugins" target.

Added back the JERSEY_LOGGER. Now messages are shown in the UI. Have to
find a way to reload the wrapper after that the options have been saved,
so that a new wrapper can be used without enforcing reload via the
plugins menu

OF-967 add option to use Name as nickname for muc bookmark

Don't know why, but it fixes the issue described here:
https://community.igniterealtime.org/thread/55868

org.apache.jasper.JasperException: XML parsing error on file /WEB-INF/web.xml

java.util.* and org.jivesoftware.util.* both import Base64 class. The compiler cannot know which one to use.

Error message is:
both class java.util.Base64 in java.util and class org.jivesoftware.util.Base64 in org.jivesoftware.util match

Right now, RestAPI plugin provides two option for accessing its
endpoints:
# Basic authentication: uses username and password of an existing
Openfire admin accoount
# Secret key: uses for authentication a key defined in the Openfire
Admin console.

It may be really useful to provide the option to define another Filter
as the authentication mechanism to use for accessing the plugin' Rest
service given its fully qualified class name.

REST API plugin: make group affiliations per room visible