Dependency update
Dependency update

- Updated references before pursuing an invariant issue, since it might
  be caused by something already fixed in reagent.
- Added "target" to the list of folders to be cleared.
- Removed explicit piggieback dependency since we were getting an issue
  with figwheel.

ricardojmendez/tropology,ricardojmendez/tropology,ricardojmendez/tropology