[fix] Removed /tests dir from python package

Author: nemesifier

MANIFEST.in

@@ -2,3 +2,4 @@ include LICENSE README.rst requirements.txt
 recursive-include netjsonconfig *
 recursive-exclude * *.pyc *.swp
 recursive-exclude * __pycache__
+recursive-exclude tests *

setup.py

@@ -55,13 +55,13 @@ def get_install_requires():
     version=get_version(),
     description=description,
     long_description=open('README.rst').read(),
-    author='Federico Capoano (nemesisdesign)',
-    author_email='f.capoano@cineca.it',
+    author='Federico Capoano',
+    author_email='federico.capoano@gmail.com',
     license='GPL3',
     url='http://netjsonconfig.openwisp.org',
     download_url='https://github.com/openwisp/netjsonconfig/releases',
     keywords=['openwrt', 'openwisp', 'netjson', 'networking'],
-    packages=find_packages(exclude=['tests', 'tests.*', 'docs', 'docs.*']),
+    packages=find_packages(exclude=['tests*', 'docs*']),
     include_package_data=True,
     zip_safe=False,
     classifiers=[