ignore distributions, add updated setup.py file

Author: Thoradin89

.gitignore

@@ -27,4 +27,6 @@ pip-delete-this-directory.txt
 .cache
 nosetests.xml
 coverage.xml
-junit*
+junit*
+build/
+dist/

setup.py

@@ -24,7 +24,7 @@
     url='https://github.com/mailjet/mailjet-apiv3-python',
     description=('Mailjet V3 API wrapper'),
     long_description=long_description,
-    classifiers=['Development Status :: 4',
+    classifiers=['Development Status :: 4 - Beta',
                  'Environment :: Console',
                  'Intended Audience :: Developers',
                  'License :: OSI Approved :: GNU General Public License (GPL)',