add C file for distribution, bump minor version

.gitignore

 build
-wordcloud/query_integral_image.c
 wordcloud/query_integral_image.so
 *.pyc
 *~

setup.py

 from distutils.core import setup
-from Cython.Build import cythonize
+from distutils.extension import Extension
 
 setup(
     name='wordcloud',
-    version='1.1.0',
+    version='1.1.1',
     url='https://github.com/amueller/word_cloud',
     description='A little word cloud generator',
     license='MIT',
-    ext_modules=cythonize('wordcloud/query_integral_image.pyx'),
+    ext_modules=[Extension("wordcloud/query_integral_image",
+                           ["wordcloud/query_integral_image.c"])],
     packages=['wordcloud'],
     package_data={'wordcloud': ['stopwords']}
 )