Rename @before function name

Author: gkorland

src/test/java/com/redislabs/redisgraph/RedisGraphAPITest.java

@@ -18,7 +18,7 @@ public RedisGraphAPITest() {
     }
 
     @Before
-    public void flushDB() throws Exception{
+    public void deleteGraph() throws Exception{
     	api.deleteGraph();
     }
 
@@ -89,4 +89,4 @@ public void testQuery() throws Exception {
     	Assert.assertEquals( "32.000000", record.getString(0));
 
     }
-}
+}