Relocate Source to proper directory.

src/main/java/appeng/me/GridException.java

@@ -0,0 +1,12 @@
+package appeng.me;
+
+public class GridException extends RuntimeException
+{
+
+	private static final long serialVersionUID = -8110077032108243076L;
+
+	public GridException(String s) {
+
+		super( s );
+	}
+}