Bump version for LaunchControl app.
Merge branch 'launchcontrol-1.15.3' of https://github.com/ctwise/homebrew-cask into launchcontrol-1.15.3

* 'launchcontrol-1.15.3' of https://github.com/ctwise/homebrew-cask:
  Fix formatting and add sha.
  Bump version for LaunchControl app.