Fix matplotlib rendering, update setup.py

Author: xl0

lovely_numpy/repr_rgb.py

@@ -66,10 +66,9 @@ def fig_rgb(x           :np.ndarray,        # Array to display. [[...], C,H,W] o
 
         ax = fig.add_axes([0,0,1,1])
         ax.set_axis_off()
-        ax.set_xlim(0, x.shape[1]+1)
         if close: plt.close(fig)
 
-    ax.imshow(x, interpolation="none")
+    ax.imshow(x, interpolation="none", aspect='equal')
     if show: plt.show()
 
     return ax.figure