Here's the W3C spec on SRI -- http://www.w3.org/TR/SRI/ -- if you still prefer not to use it, you can opt to remove the 'integrity' attribute, it's being provided as a convenience.
Git with the basics of git-flow, master, develop, feature and release branches, both business and personal, although I don't tend to use release branches and rarely feature branches on my personal projects.
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script(src='//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js' crossorigin='anonymous')