Merge pull request #92 from lindegroup/recipe-overrides-button

Recipe overrides button
Added Apache License 2.0.
Added Apache License boilerplate to all source files.
Merge commit 'cb9246b62ec63285c8a37c0090e0fc63147902c8' into major-overhaul

* commit 'cb9246b62ec63285c8a37c0090e0fc63147902c8':
  Added Apache License boilerplate to all source files.
  Added Apache License 2.0.
Automatically uninstall helper tool on quit.