v0.2.2

• Changed project structure to be less confusing. Material-UI components/styles live in the src directory.
  Docs site code lives in the docs directory. This still allows us to easily test components in the docs site
  as we are working on them.
• Added .editorconfig to help keep code formatting consistent among contributors. See http://editorconfig.org/
• Fixed drop down display issue in safari
• Fixed nested menu arrow icon
• Added hover transitions to menus
• Improved ripple animation on buttons