Refactor of template and script services to allow easy addition of further template and script processors.

Hightlights of check-in include:
- Introduction of script processor 
- Neutralisation of script and template models
- The notion of a processor extension introduced
- Extensions applied to processor implementation rather than the services
- Auto selection of processor based on file extension of template or script

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5519 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/action/executer/ScriptActionExecuter.java

@@ -29,7 +29,6 @@ import java.util.Map;
 
 import org.alfresco.model.ContentModel;
 import org.alfresco.repo.action.ParameterDefinitionImpl;
-import org.alfresco.repo.jscript.RhinoScriptService;
 import org.alfresco.repo.jscript.ScriptAction;
 import org.alfresco.service.ServiceRegistry;
 import org.alfresco.service.cmr.action.Action;
@@ -129,8 +128,7 @@ public class ScriptActionExecuter extends ActionExecuterAbstractBase
                 
                 // the default scripting model provides access to well known objects and searching
                 // facilities - it also provides basic create/update/delete/copy/move services
-                Map<String, Object> model = RhinoScriptService.buildDefaultModel(
-                        this.serviceRegistry,
+                Map<String, Object> model = this.serviceRegistry.getScriptService().buildDefaultModel(
                         personRef,
                         getCompanyHome(),
                         homeSpaceRef,