Implemented OAuth2 client authentication.

Change-Id: Ia8b10116e72c3702f369d1cc04561bab5e269f95
diff --git a/full/src/test/java/de/ids_mannheim/korap/web/FilterTest.java b/full/src/test/java/de/ids_mannheim/korap/web/FilterTest.java
index 7dcfa32..64000cc 100644
--- a/full/src/test/java/de/ids_mannheim/korap/web/FilterTest.java
+++ b/full/src/test/java/de/ids_mannheim/korap/web/FilterTest.java
@@ -13,8 +13,8 @@
 
 import de.ids_mannheim.korap.authentication.http.HttpAuthorizationHandler;
 import de.ids_mannheim.korap.config.Attributes;
-import de.ids_mannheim.korap.config.TokenType;
 import de.ids_mannheim.korap.config.TestHelper;
+import de.ids_mannheim.korap.constant.TokenType;
 import de.ids_mannheim.korap.exceptions.KustvaktException;
 
 /** EM: fix tests. new DB does not save users.