Add basic itests for Github/Jira endpoint

Prior to this commit, bugging-out had a series of unittests, which
have done a pretty good job of making sure that things don't break
as I make small changes here and there.  But there haven't been any
tests that make sure that the pieces work together: not a single test
ran the script from the command line and made assertions about the
results!

This commit adds two tests which do just this: one for each supported
endpoint.  The tests aren't great insurance against backsliding, but
they do provide a good starting point to build off of when more
functionality is added.

NOTE: currently, these tests CAN'T be made too involved.  There is
a bug (see Issue #16) where Github's rate limited isn't handled
graciously.  If these tests are expanded, they will quickly hit this
issue.

Issue #15