Added comments, moved EntityHandlerIface, and cleaned up old codes.

Change-Id: I1a182b6ecd3dfeea4af08f3accd72fbce9af0f9c
diff --git a/full/src/main/java/de/ids_mannheim/korap/config/AuthenticationMethod.java b/full/src/main/java/de/ids_mannheim/korap/config/AuthenticationMethod.java
index afd81ed..b44d0a0 100644
--- a/full/src/main/java/de/ids_mannheim/korap/config/AuthenticationMethod.java
+++ b/full/src/main/java/de/ids_mannheim/korap/config/AuthenticationMethod.java
@@ -1,5 +1,14 @@
 package de.ids_mannheim.korap.config;
 
+/** Lists possible actual authentication methods. Multiple 
+ *  {@link AuthenticationScheme} may use an identical 
+ *  authentication method. 
+ * 
+ * @author margaretha
+ * 
+ * @see AuthenticationScheme 
+ *
+ */
 public enum AuthenticationMethod {
     LDAP, SHIBBOLETH, DATABASE; 
 }