Turning in Is it cold enough to store my beer outside? assignment.

Turning in Is it cold enough to store my beer outside? assignment.
Thank you for your review.
I have added error handling.

https://github.com/HIROSN/is-it-cold-enough-to-store-my-beer-outside/commit/b1414a1c7ecb297958ba62a3c8cfe0c7b3b2b876

https://travis-ci.org/HIROSN/is-it-cold-enough-to-store-my-beer-outside/builds/41293294