align with fluxible-router, pass props

[kaesonho]

@MattHo @redonkulus @lingyan

it's for aligning with https://github.com/yahoo/fluxible/blob/master/packages/fluxible-router/lib/createNavLinkComponent.js#L127,

in case users put I13nMixin and NavLink together, and integrate shouldFollowLink, should pass props and provide the same API, otherwise will see js error

[redonkulus]

👍

[yahoocla]

CLA is valid!

[coveralls]

Coverage remained the same at 91.267% when pulling a19d570 on passprops into fa495e2 on master.