ignore import error for fig.py: depends on windows only libraries

pywafo/src/wafo/__init__.py

@@ -11,8 +11,11 @@ import definitions
 import polynomial
 import stats
 import interpolate
-import fig
 import dctpack
+try:
+    import fig
+except ImportError:
+    print 'fig import only supported on Windows'
 
 try:
     from wafo.version import version as __version__

pywafo/src/wafo/kdetools.py

@@ -24,7 +24,10 @@ from wafo.misc import meshgrid, nextpow2, tranproc #, trangood
 from wafo.wafodata import PlotData
 from wafo.dctpack import dct, dctn, idctn
 from wafo.plotbackend import plotbackend as plt
+try:
     from wafo import fig
+except ImportError:
+    print 'fig import only supported on Windows'
 
 _TINY = np.finfo(float).machar.tiny