Update link to Bootstrap in README
Merge pull request #301 from cvrebert/patch-1

Update link to Bootstrap in README
Remove the deprecated warning about global vars.
Merge branch 'global-var-warnings' of https://github.com/emagnier/inuit.css into global-var-warnings

* 'global-var-warnings' of https://github.com/emagnier/inuit.css:
  Remove the deprecated warning about global vars.