Moved disk store path cache_store into the data folder (#598)

Although it is not used at the moment.

Change-Id: Id6d4d09c87647e1c7b7a68404568b9fdc5b3a3dc
diff --git a/src/main/resources/ehcache.xml b/src/main/resources/ehcache.xml
index 077e260..d6a97e4 100644
--- a/src/main/resources/ehcache.xml
+++ b/src/main/resources/ehcache.xml
@@ -4,7 +4,7 @@
 
 	<defaultCache eternal='true' overflowToDisk='false' />
 	<!--maxBytesLocalHeap="200M" -->
-	<diskStore path="./cache_store" />
+	<diskStore path="./data/cache_store" />
 
 
 	<!-- EM -->