Added current python versions

updated development status

.travis.yml

@@ -1,9 +1,11 @@
 language: python
 
 python:
-  - 3.4
   - 3.5
   - 3.6
+  - 3.7
+  - 3.8
+  - 3.9-dev
 
 before_script:
   - flake8 tests ogn

setup.py

@@ -23,15 +23,17 @@ setup(
     author_email='kerel-fs@gmx.de',
     license='AGPLv3',
     classifiers=[
-        'Development Status :: 3 - Alpha',
+        'Development Status :: 4 - Beta',
         'Intended Audience :: Developers',
         'Intended Audience :: Science/Research',
         'Topic :: Scientific/Engineering :: GIS',
         'License :: OSI Approved :: GNU Affero General Public License v3',
         'Programming Language :: Python :: 3 :: Only',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9'
     ],
     keywords='gliding ogn',
     packages=['ogn.{}'.format(package) for package in find_packages(where='ogn')],