Refactor subsystems for authentication chaining

- An authentication chain of size 1 configured by default
- DefaultChildApplicationContextManager supports dynamic configuration of the authentication chain via Spring or JMX. Any number of instances of any type allowed in chain.
- SubsystemChainingAuthenticationComponent and SubsystemChainingAuthenticationService iterate across configured chain for Authentication
- SSO (NTLM / Kerberos) and CIFS authentication independently activatable for any component in chain (where supported).
- SubsystemChainingProxyFactory used to proxy directly to first active CIFS authenticator or SSO filter in the chain
- CIFS server knows not to bother starting if authentication chain doesn't have an active CIFS authenticator (e.g. LDAP only)
- Rationalization of subsystem configuration folder structure and JMX object naming
- Classpath based extension mechanism for community edition - alfresco/extension/subsystems/<category>/<typeName>/<id>/*.properties in classpath can be used to configure specific subsystem instances
- Simplification of JMX infrastructure. No longer Spring bean definition based, thus allowing dynamic creation/registration of new instances at runtime.
- New AuthenticationChainTest unit test

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@14030 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/security/authentication/AbstractAuthenticationComponent.java

@@ -415,30 +415,6 @@ public abstract class AbstractAuthenticationComponent implements AuthenticationC
         authenticationContext.clearCurrentSecurityContext();
     }
 
-    /**
-     * The default is not to support Authentication token base authentication
-     */
-    public Authentication authenticate(Authentication token) throws AuthenticationException
-    {
-        throw new AlfrescoRuntimeException("Authentication via token not supported");
-    }
-
-    /**
-     * The should only be supported if getNTLMMode() is NTLMMode.MD4_PROVIDER.
-     */
-    public String getMD4HashedPassword(String userName)
-    {
-        throw new UnsupportedOperationException();
-    }
-
-    /**
-     * Get the NTML mode - none - supports MD4 hash to integrate - or it can asct as an NTLM authentication
-     */
-    public NTLMMode getNTLMMode()
-    {
-        return NTLMMode.NONE;
-    }
-
     class SetCurrentUserCallback implements RetryingTransactionHelper.RetryingTransactionCallback<Authentication>
     {
         AuthenticationException ae = null;
@@ -527,7 +503,7 @@ public abstract class AbstractAuthenticationComponent implements AuthenticationC
      * 
      * @param defaultAdministratorUserNames
      */
-    public void setDefaultAdministratorUserNames(String defaultAdministratorUserNames)
+    public void setDefaultAdministratorUserNameList(String defaultAdministratorUserNames)
     {
         Set<String> nameSet = new TreeSet<String>();
         if (defaultAdministratorUserNames.length() > 0)