Add the missing removeTodo method to the sample.
Add a guide on the router flow when a user clicks on a link-to
Note about exception being raised and how to address.
No need to duplicate stuff here and in the show-only-incomplete-todos.md file.

We can expect people to read the Todos guide from beginning to end, so I don't think we need to duplicate the exact text on multiple pages. Hence, I feel that this change makes it look a bit more polished and elegant (even though it can certainly still be improved further).
Initial PR for ember testing guide redux
Added stub for runners section of testing guides
Added docs for using the Karma test runner
Added note about other configuration options available to karma
Added testing guide for testem test runner

TODO: There are a few hyperlinks that need to be filled out... can't do
it from a plane bro
Added info about manually running tests in browser

TODO: This needs some love once I get on the ground and get me some
WIFI.
Added info about test reports and build integration.

TODO: This needs love
Updated links for to other references
Added example of manually running tests in browser
Added docs for generating reports from karma
Added docs for generating reports from testem
Getting started with some examples of tesitng models.
Merge pull request #2 from mattjmorrison/testing-redux-karma-runner

Initial docs for using the Karma test runner.
Add a cookbook on using slugs instead of ids in the url
Added a section on testing functions
Put linear-gradient in line with w3c spec