Explain what this is becoming
Remove stylesheet related functionality from flutie

* Remove provided stylesheets
* Remove files related to installing stylesheets
* Remove styleguides preview
* Remove capybara config from spec_helper
* Remove no longer relevant spec coverage
Prepare to bump to version 2.0.0
Merge pull request #40 from thoughtbot/mj-remove-stylesheets

Remove stylesheets from flutie