Check upstream repo to see if pull request is sent successfully.
Add tests to make sure inquiring both source and upstream repo works.
Stub authorization otherwise Travis-CI will get stuck.
Stub setting because an actual Octokit::Client is required.
Merge pull request #63 from xystushi/review_130818_bugfix_for_sending_pr

Check upstream repo to see if pull request is sent successfully.
Add hashie as development dependency

This should fix Travis. Not sure how that happened.