Increment version number.
Make it a little clearer that we don't test linked js for spelling.
Be explicit about what we mean by "responses".
Break out the instant_responses API into its own test class.

This way, you can have a test that takes advantage of the API we provide
without running the tests.
Increment version number.
Put travis status badge inline with h1.
Only follow redirects if asked to.
Increment version number.
Abstract out the actual resolving of URLs in ExternalLinks.
Increment version number.
Suggest that proxies might be another good reason to override ATGEU.

I love commit message character limits.
Use SVG build status badge.
Clarify some things about the construction of covered_urls.

Closes #8.
Point people at the well-hidden changelog.
Test on Python 3.4.
Don't expect a particular format of error from the `json` module.

Fixes the build on Python 3.4. It was the test that was broken.