v0.9.3 - Add API service endpoint, support subpaths

Thanks for your feedback, which finally lead to this new release!

• new features
  • added API endpoints to integrate the reporter in your toolchain; details are explained in the README.md (#54)
  • reporter webservice (and also the new API endpoints) can now be called from any subpathes (#55)
• bugfixes
  • rendered ERB templates always received .zip extension on downloading, which was definitely wrong. Now we use the default_result_extension configured in the report class, which is the better choice also for custom report classes (#51)

Enjoy!

PS: Because of test issues in the build pipeline, I had to skip previous 0.9.x releases to keep a concise version numbering.