Clean up three sets of warnings:

* Ensure all switches have a default when working with enums.
* Match defined new[] calls with delete[] calls.
* Respect variable initialization order.

src/archutils/Darwin/MouseDevice.cpp

@@ -4,9 +4,9 @@
 using __gnu_cxx::hash_map;
 
 Mouse::Mouse() : id( InputDevice_Invalid ),
-				x_axis( 0 ), x_min( 0 ), x_max( 0 ),
-				y_axis( 0 ), y_min( 0 ), y_max( 0 ),
-				z_axis( 0 ), z_min( 0 ), z_max( 0 )
+				x_axis( 0 ), y_axis( 0 ), z_axis( 0 ),
+				x_min( 0 ), x_max( 0 ), y_min( 0 ),
+				y_max( 0 ), z_min( 0 ), z_max( 0 )
 {
 }