Remove unneeded end tags.
Remove default type for CSS and JS files.
Add missing alt text.
Use double quotes consistently.
Remove unused Google font.
Use the protocol relative URL for Google fonts.
Remove empty classes.
Remove the unused `site.url`.
Specify image dimensions in the HTML.
Add dat blog post.
Hehe. [ci skip]
Update history with 1.5.0 release. [ci skip]
Release 2.0.0.alpha.1
A tiny fix to changelog

cucmber -> cucumber
Merge pull request #2169 from gmile/patch-1

A tiny fix to changelog
Update site/docs/history.md
Merge branch 'master' of github.com:jekyll/jekyll

* 'master' of github.com:jekyll/jekyll:
  A tiny fix to changelog
Merge pull request #2130 from XhmikosR/html-cleanup
Update history to reflect merge of #2130 [ci skip]
Move vendor prefixed properties before the unprefixed ones.