Resolve "Example App schreiben"

Closes #11 (closed) /cc @bvetter

added 5 commits

• cde89127...a8e10463 - 3 commits from branch master
• f16151fc - Merge branch 'master' into 11-write-example-app
• f2b425d7 - update ExampleApp to demonstrate static files

Compare with previous version

added 1 commit

• 577d6239 - remove test_hub folder - not needed

Compare with previous version

merged

mentioned in commit 0cc2e906