add JdbcTemplate

like Spring Data

src/main/java/ghast/database/EmptyResultDataAccessException.java

@@ -0,0 +1,8 @@
+package ghast.database;
+
+public class EmptyResultDataAccessException extends IncorrectResultSizeDataAccessException {
+
+	public EmptyResultDataAccessException(int expectedSize) {
+		super(expectedSize);
+	}
+}