v4.0.0

• Improve the Apache compression configuration
  (#1012,
  #1173).
• Add a HiDPI example media query
  (#1127).
• Add bundled docs
  (#1154).
• Add MIT license
  (#1139).
• Update to Normalize.css 1.0.1.
• Separate Normalize.css from the rest of the CSS
  (#1160).
• Improve console.log protection
  (#1107).
• Replace hot pink text selection color with a neutral color.
• Change image replacement technique
  (#1149).
• Code format and consistency changes
  (#1112).
• Rename CSS file and rename JS files and subdirectories.
• Update to jQuery 1.8
  (#1161).
• Update to Modernizr 2.6.1
  (#1086).
• Remove uncompressed jQuery
  (#1153).
• Remove superfluous inline comments
  (#1150).