Also I think there is a bug in the Travis support. TRAVIS_PULL_REQUEST_SLUG should be TRAVIS_REPO_SLUG (https://docs.travis-ci.com/user/environment-variables/).
I think in case of forks TRAVIS_PULL_REQUEST_SLUG will contain the information of the fork, where you actually want to update the current repo status (I'm not sure since I don't use Travis).
Fixes #16
You can test it by installing directly from my branch:
Also I think there is a bug in the Travis support.
TRAVIS_PULL_REQUEST_SLUG
should beTRAVIS_REPO_SLUG
(https://docs.travis-ci.com/user/environment-variables/). I think in case of forksTRAVIS_PULL_REQUEST_SLUG
will contain the information of the fork, where you actually want to update the current repo status (I'm not sure since I don't use Travis).