User friendly warning if COVERALLS_REPO_TOKEN is not set #203
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Currently when COVERALLS_REPO_TOKEN is not set Coveralls fails with an error message.
Bad response: 422 {"message":"Couldn't find a repository matching this job.","error":true}
For a new user it is not clear what the problem is. There is a warning message, but it is only visible if NODE_COVERALLS_DEBUG is enabled. And even then there is so much debugging information that a user will never see it.
I have added a warning message that is displayed when COVERALLS_REPO_TOKEN is not set. I also added the environment variable COVERALLS_QUIETE to run in quiete mode if required.