v5.0.0

Breaking

• Rename screenfull.enabled to screenfull.isEnabled 9b98fcc
• Drop Safari 5.1 (it's ancient) workaround 927e361
• Unify checking for fullscreen availability (#154) 633ea78
  Previously, you had to check if (screenfull && screenfull.enabled) {} before using it. Now you just use if (screenfull.isEnabled) {}.

Breaking for TypeScript users

• Require Screenfull to be imported using require when using TypeScript 2664e56
  You need to change import screenfull from 'screenfull'; to import screenfull = require('screenfull');

v4.2.1...v5.0.0