Added character plot.

src/test_chars.py

+#!/usr/bin/python
+from pylab import subplot, show, imshow, axis
+from cPickle import load
+
+x, y = 25, 25
+chars = load(file('chars', 'r'))[:(x * y)]
+
+for i in range(x):
+    for j in range(y):
+        index = j * x + i
+        subplot(x, y, index + 1)
+        axis('off')
+        imshow(chars[index].image.data, cmap='gray')
+
+show()