Fixed basic authentication to work properly in Python3

setup.py

@@ -10,18 +10,19 @@
 with open('README.md') as f:
     long_description = f.read()
 
-__version__ = '0.9.9'
+__version__ = '1.0.0'
 
 setup(
     name='solrpy',
     # We can do this because we don't rely on getting "built" to be importable:
     version=__version__, # update only solr.core.__version__
-    url='http://code.google.com/p/solrpy',
+    url='http://github.com/search5/solrpy',
     license='http://opensource.org/licenses/apache2.0.php',
     packages=find_packages(),
     long_description=long_description,
     long_description_content_type='text/markdown',  # This is important!
     install_requires=["future", "six", "pyyaml"],
+    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4',
     description='Client for the Solr search service',
     tests_require=["future", "six", "nose>=0.10.1"],
     test_suite='nose.collector'

solr/core.py

@@ -429,7 +429,7 @@ def __init__(self, url,
             http_auth = http_user + ':' + http_pass
             if six.PY3:
                 http_auth = http_auth.strip().encode('utf-8')
-            http_auth = 'Basic ' + base64.b64encode(http_auth)
+            http_auth = b'Basic ' + base64.b64encode(http_auth)
             self.auth_headers = {'Authorization': http_auth}
         else:
             self.auth_headers = {}