New implementation of doclibrary fine grained permissions dialog.

- Updated to Linton's new design and visuals
 - Removal of obsolete actions
 - SiteManager group permissions can no longer be modified
 - Removal of unnecessary and naughty runAs(systemuser) code patterns in Site permission modification code
 - Setting and Resetting of permissions now working correctly
 - Addition of missing permission checks to doclib actions (fixes issue with apparent ability of a Consumer user able to edit document meta-data - infact they could not, no permission check was performed before rendering the action and cached data was displayed when subsequently clicked)
 - Various other fixes and improvements to related webscripts.
Addition of the SiteContributor role.
Fix to missing json encoding in json.status.ftl
Minor improvements to url encoder/decoder classes and removal of flush() call from RemoteClient that was not required but occasionally caused issues for Flash apps.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@10579 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/site/SiteModel.java

@@ -48,6 +48,6 @@ public interface SiteModel
     /** Site Permission */
     public static final String SITE_MANAGER = "SiteManager";
     public static final String SITE_COLLABORATOR = "SiteCollaborator";
+    public static final String SITE_CONTRIBUTOR = "SiteContributor";
     public static final String SITE_CONSUMER = "SiteConsumer";
-}
-
+}