Move Derby system home into 'target' folder

Author: sbabcoc

.gitignore

@@ -12,6 +12,3 @@ integration/felix-cache/
 runner
 .DS_Store
 test-output
-@TestDB
-TestDB
-derby*

src/test/java/com/nordstrom/common/jdbc/DatabaseUtilsTest.java

@@ -12,6 +12,10 @@
 
 public class DatabaseUtilsTest {
 
+    static {
+        System.setProperty("derby.system.home", "target");
+    }
+    
     @BeforeClass
     public static void startDerby() {
         Connection conn = null;