feat(openID): first stable version

UI/MainUI/SOGoUserHomePage.m

@@ -32,6 +32,7 @@
 
 #import <SOGo/SOGoCache.h>
 #import <SOGo/SOGoCASSession.h>
+#import <SOGo/SOGoOpenIdSession.h>
 #if defined(SAML2_CONFIG)
 #import <SOGo/SOGoSAML2Session.h>
 #endif
@@ -429,6 +430,14 @@
       redirectURL = [SOGoCASSession CASURLWithAction: @"logout"
                                        andParameters: nil];
     }
+  else if ([[sd authenticationType] isEqualToString: @"openid"])
+  {
+    SOGoOpenIdSession* session;
+    session = [SOGoOpenIdSession OpenIdSession];
+    redirectURL = [session logoutUrl];
+    //delete openid session in database
+    
+  }
 #if defined(SAML2_CONFIG)
   else if ([[sd authenticationType] isEqualToString: @"saml2"])
     {