MOB-651: Decouple File Servers from Config Service and Authenticators

- Minor JLAN changes (backward compatible)
   - CIFSAuthenticator implements an interface (to allow dynamic proxying to authentication subsystem)
   - CIFSAuthenticator accesses ServerConfiguration via ServerConfigurationAccessor interface and doesn't retain references to config sections (again to allow dynamic proxying and hot swapping)
   - ConfigSections have way of directly setting container initialised authenticators, sharemappers, etc.
   - Authenticators, etc. still support initialisation from config service in backward compatible manner.
- Most of ServerConfigurationBean moved to AbstractServerConfigurationBean superclass.
- New org.alfresco.filesys.config package with ServerConfigurationBean implementation and supporting classes that can be initialised by a Spring container.
- File server authenticators moved into authentication subsystem. TODO: Kerberos and NTLM

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@13795 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/filesys/AlfrescoConfigSection.java

@@ -78,7 +78,7 @@ public class AlfrescoConfigSection extends ConfigSection {
    * 
    * @param config ServerConfigurationBean
    */
-  public AlfrescoConfigSection(ServerConfigurationBean config) {
+  public AlfrescoConfigSection(AbstractServerConfigurationBean config) {
     super( SectionName, config);
     
     // Copy values from the server configuration bean