Add support for astropy version of wcsaxes

lsmtool/operations/plot.py

@@ -85,6 +85,10 @@ def plot(LSM, fileName=None, labelBy=None):
         raise ImportError('PyPlot could not be imported. Plotting is not '
             'available: {0}'.format(e.message))
     try:
+        try:
+            from astropy.visualization.wcsaxes import WCSAxes
+            hasWCSaxes = True
+        except:
             from wcsaxes import WCSAxes
             hasWCSaxes = True
     except: