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/AuthenticationComponent.java

@@ -41,15 +41,6 @@ public interface AuthenticationComponent extends AuthenticationContext
      * @throws AuthenticationException
      */     
     public void authenticate(String userName, char[] password) throws AuthenticationException;
-
-    /**
-     * Authenticate using a token
-     * 
-     * @param token Authentication
-     * @return Authentication
-     * @throws AuthenticationException
-     */
-    public Authentication authenticate(Authentication token) throws AuthenticationException;
     
     /**
      * Explicitly set the current user to be authenticated.
@@ -76,16 +67,6 @@ public interface AuthenticationComponent extends AuthenticationContext
      */
     public boolean guestUserAuthenticationAllowed();
     
-    /**
-     * Get the enum that describes NTLM integration
-     */
-    public NTLMMode getNTLMMode();
-    
-    /**
-     * Get the MD4 password hash, as required by NTLM based authentication methods.
-     */
-    public String getMD4HashedPassword(String userName);
-    
     /**
      * Gets a set of user names who for this particular authentication system should be considered administrators by
      * default. If the security framework is case sensitive these values should be case sensitive user names. If the