Use gzipped Matlab files in the examples.

diff -Nru scitools-0.6.orig/examples/contourslice_demo2.py scitools-0.6/examples/contourslice_demo2.py
--- scitools-0.6.orig/examples/contourslice_demo2.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/contourslice_demo2.py	2009-09-04 12:58:36.000000000 +0200
@@ -9,7 +9,7 @@
 
 setp(interactive=False)
 
-mri = io.loadmat('mri_matlab_v6.mat')
+mri = io.loadmat('mri_matlab_v6.mat.gz')
 D = mri['D']
 D = squeeze(D)
 
diff -Nru scitools-0.6.orig/examples/isosurface_demo2.py scitools-0.6/examples/isosurface_demo2.py
--- scitools-0.6.orig/examples/isosurface_demo2.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/isosurface_demo2.py	2009-09-04 12:58:51.000000000 +0200
@@ -10,7 +10,7 @@
 setp(interactive=False)
 
 # Displaying an Isosurface:
-mri = io.loadmat('mri_matlab_v6.mat')
+mri = io.loadmat('mri_matlab_v6.mat.gz')
 D = mri['D']
 #Ds = smooth3(D);
 
diff -Nru scitools-0.6.orig/examples/isosurface_demo3.py scitools-0.6/examples/isosurface_demo3.py
--- scitools-0.6.orig/examples/isosurface_demo3.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/isosurface_demo3.py	2009-09-04 12:59:05.000000000 +0200
@@ -10,7 +10,7 @@
 setp(interactive=False)
 
 # Create an Isosurface:
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']
diff -Nru scitools-0.6.orig/examples/streamline_demo1.py scitools-0.6/examples/streamline_demo1.py
--- scitools-0.6.orig/examples/streamline_demo1.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/streamline_demo1.py	2009-09-04 12:59:25.000000000 +0200
@@ -7,7 +7,7 @@
 from time import sleep
 from scipy import io
 
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']
diff -Nru scitools-0.6.orig/examples/streamline_demo2.py scitools-0.6/examples/streamline_demo2.py
--- scitools-0.6.orig/examples/streamline_demo2.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/streamline_demo2.py	2009-09-04 12:59:39.000000000 +0200
@@ -7,7 +7,7 @@
 from time import sleep
 from scipy import io
 
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']
diff -Nru scitools-0.6.orig/examples/streamline_demo3.py scitools-0.6/examples/streamline_demo3.py
--- scitools-0.6.orig/examples/streamline_demo3.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/streamline_demo3.py	2009-09-04 12:59:52.000000000 +0200
@@ -7,7 +7,7 @@
 from time import sleep
 from scipy import io
 
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']
diff -Nru scitools-0.6.orig/examples/streamribbon_demo1.py scitools-0.6/examples/streamribbon_demo1.py
--- scitools-0.6.orig/examples/streamribbon_demo1.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/streamribbon_demo1.py	2009-09-04 13:00:04.000000000 +0200
@@ -7,7 +7,7 @@
 from time import sleep
 from scipy import io
 
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']
diff -Nru scitools-0.6.orig/examples/streamtube_demo1.py scitools-0.6/examples/streamtube_demo1.py
--- scitools-0.6.orig/examples/streamtube_demo1.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/streamtube_demo1.py	2009-09-04 13:00:17.000000000 +0200
@@ -6,7 +6,7 @@
 from scitools.easyviz import *
 from scipy import io
 
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']
diff -Nru scitools-0.6.orig/examples/streamtube_demo2.py scitools-0.6/examples/streamtube_demo2.py
--- scitools-0.6.orig/examples/streamtube_demo2.py	2009-09-04 12:57:18.000000000 +0200
+++ scitools-0.6/examples/streamtube_demo2.py	2009-09-04 13:00:27.000000000 +0200
@@ -6,7 +6,7 @@
 from scitools.easyviz import *
 from scipy import io
 
-wind = io.loadmat('wind_matlab_v6.mat')
+wind = io.loadmat('wind_matlab_v6.mat.gz')
 x = wind['x']
 y = wind['y']
 z = wind['z']