v2.0.0

• Component is a PureComponent now.
• Dependencies upgraded to latest.
• Breaking change: options are inline now.

Before: <Odometer value={1234} options={{ format: '(.ddd),dd' }} />

Now: <Odometer value={1234} format="(.ddd),dd" />

• ESLint added for development
• babel-preset-env used instead of babel-preset-es2015