import 'A Wordcloud in Python' by Peekaboo to make wordle like image

see following
a. http://peekaboo-vision.blogspot.com/2012/11/a-wordcloud-in-python.html
b. https://github.com/amueller/word_cloud
Add free font by google
fixed: font path
for saving time, pre-built so is added.

For saving time, pre-build so is addded. So, if you modify
query_integral_image.pyx, please do follow and use so file.

$ make

Also, if you want to update any .so file to commit, please do following
command due to .gitignore.

$ git add query_integral_image.so
$ git commit