Comment emailable logic to decide when to send notifications
Test coverage for comment observer

[Fixes #452]
Include Code Climate Score in README.md Badge

updates the image in the README.md to include the current code climate score.
Merge pull request #454 from vegantech/patch-1

Include Code Climate Score in README.md Badge
Use comment notification recipients in mailer
Merge pull request #455 from alvarobp/comment-mail-with-one-user-complete

Commenting on an error when there is only one user raises an exception
I skipped this step and had to backtrack a little. Nice to remind users here.
Merge pull request #457 from projectdx/readme-update

Add a line reminding Heroku deployers to edit seeds.rb before pushing and running rake db:seed
Use https urls for gems fetched from git
Merge pull request #463 from luuse/https_git_urls

Use https urls for gems fetched from git
Added 'coveralls' for test coverage reporting
Configure Webmock to allow HTTP requests to coveralls.io
Put Webmock config in config.after(:all) block
Update Heroku config in README

mongolab free plan is now called "sandbox"
Merge pull request #469 from adamjt/master

Update Heroku config in README
Merge branch 'master' of github.com:errbit/errbit