3.0.0

• ES5
• Universal Fetch Ponyfill
• Implicit Grant implementation
• Cleaner externals & better param handling
• Typings
• TravisCI cache & FireFox
• Travis CI now pushes builds to Github Releases
• Removed build of tests
• API docs generator
• Cleanup
• JSHint
• Editorconfig updated
• Removed bundle
• Added Chrome & Firefox tests
• Removed Gulp
• Upgraded all dependencies
• Updated Karma-Webpack and Mocha-Compilers
• Refactored Platform, Subscription, CachedSubscription
• Removed Observable
• Removed polling from Utils
• Updated demos & docs
• Renamed _ensureAuthentication to ensureLoggedIn and made it public
• Subscription can change channels at PUBNUB
• Updated externals, altered naming for 3-legged OAuth methods