Merge pull request #26 from Meisterschueler/dependabot/pip/flask-1.0.3

Bump flask from 1.0.2 to 1.0.3

setup.py

@@ -32,7 +32,7 @@ setup(
     keywords='gliding ogn',
     packages=find_packages(exclude=['tests', 'tests.*']),
     install_requires=[
-        'Flask==1.0.2',
+        'Flask==1.0.3',
         'flask-sqlalchemy==2.4.0',
         'Flask-Migrate==2.4.0',
         'flask-bootstrap==3.3.7.1',