Minor change in classifiers

Author: Chilipp

setup.py

@@ -58,8 +58,8 @@ def readme():
       description='Python package for digitizing pollen diagrams',
       long_description=readme(),
       classifiers=[
-        'Development Status :: 1 - Planning',
-        'Intended Audience :: Developers',
+        'Development Status :: 5 - Production/Stable',
+        'Intended Audience :: Science/Research',
         'Topic :: Scientific/Engineering :: Visualization',
         'Topic :: Scientific/Engineering :: GIS',
         'Topic :: Scientific/Engineering',