REST service: 
 - korap to public service interface that only includes publicly available functions
 - reset passphrase request moved to UserService
 
Exceptions:
 - added EmptyResultException

Policy Service:
 - distinguising retrieve and build policies
 - throw EmptyResultException if no policies available
 - QueryParser and QueryRewriter (latter not yet implemented) 
 - general bug fixing

diff --git a/pom.xml b/pom.xml
index fc2d4e0..35aa352 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,6 +45,11 @@
             <version>LATEST</version>
         </dependency>
         <dependency>
+            <groupId>KorAP-modules</groupId>
+            <artifactId>KorAP-Entities</artifactId>
+            <version>LATEST</version>
+        </dependency>
+        <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <version>4.11</version>