changing fft imports

examples/aligo/FFT_ArmCavity_precompute.py

@@ -15,7 +15,7 @@ from pykat.external.progressbar import ProgressBar, ETA, Percentage, Bar
 
 from pykat.optics.maps import *
 from pykat.optics.gaussian_beams import HG_beam, beam_param
-from pykat.fft.fft import *
+from pykat.optics.fft import *
 
 from aligo import *
 

examples/aligo/FFT_ArmCavity_scan.py

@@ -13,7 +13,7 @@ import shelve
 
 from pykat.optics.maps import *
 from pykat.optics.gaussian_beams import HG_beam, beam_param
-from pykat.fft.fft import *
+from pykat.optics.fft import *
 from aligo import *
 
 def main():

examples/fft/spatial_filter.py

@@ -6,7 +6,7 @@ from __future__ import unicode_literals
 import pylab as pl
 
 from pykat.optics.gaussian_beams import HG_beam, beam_param
-from pykat.fft.fft import *
+from pykat.optics.fft import *
 import numpy as np
 import scipy