v0.3.0

• Upgrade components
  • <Button />(3e69641)
• Add new components
  • <Buttons />(3e69641)
  • <Container />(bb3dc04)
  • <Header />(861f348)
  • <Icon />(192c012)
  • <Icons />(192c012)
  • <Image />(0cffeb8)
  • <Images />(0cffeb8)
  • <Slate />(7d82549)
  • <Segment />(0772e14)
  • <Segments />(0772e14)
• Upgrade demo/doc site react-tocas.github.io
  • Add google analytics, github buttons, share buttons and disqus thread to homepage
  • Add getting started page
  • Fix typos