show_colorscale does not accept the "smooth" parameter

I updated some package within python or aplpy or whatever (I really do not remember what was it exactly) but now when I want to produce a skymap from a fits file using the show_colorscale function I cannot select a smoothing parameter. My script is called plot_maps.py. I am using the Anaconda python distribution and it works perfect except for that.

the command that I pass in my script is:

f3.show_colorscale(vmin=0.68, vmax=1.8, smooth=3., kernel='gauss', interpolation='bicubic')

Without the smooth=3.0 option it works perfect (but I need the image to be smoothed).

The error I get is the following:

```
Traceback (most recent call last):
File "plot_maps.py", line 123, in 
f3.show_colorscale(vmin=0.68, vmax=1.8, smooth=3., kernel='gauss', interpolation='bicubic')
File "", line 2, in show_colorscale
File "/home/gamma/radix/pmunar/bin/anaconda/lib/python2.7/site-packages/aplpy/decorators.py", line 25, in autorefresh
f(args, *kwargs)
File "/home/gamma/radix/pmunar/bin/anaconda/lib/python2.7/site-packages/aplpy/aplpy.py", line 709, in show_colorscale
self.image = self.ax1.imshow(convolveutil.convolve(self.data, smooth=smooth, kernel=kernel), cmap=cmap, interpolation=interpolation, origin='lower', extent=self.extent, norm=normalizer, aspect=aspect)
File "/home/gamma/radix/pmunar/bin/anaconda/lib/python2.7/site-packages/aplpy/convolve_util.py", line 25, in convolve
image_fixed[np.isinf(image)] = np.nan
ValueError: cannot convert float NaN to integer
```

Thank you for your help