v0.5.3

• 273625a [fixed] Active state on <Link>s with key prop
• 283d3f6 [added] RouteStore#registerChildren
• a030648 [changed] Relaxed MemoryStore invariant
• e028768 [added] <DefaultRoute> component
• 6878120 [added] onAbortedTransition, onActiveStateChange, onTransitionError Routes props
• 58073ca [changed] Transition#cancelReason => abortReason
• 6d1ae95 [fixed] sibling array route configs
• 0e7a182 [added] pluggable history implementations closes #166
• ca96f86 [fixed] typo in Link
• f3dc513 [added] onClick handler to <Link />
• b9f92f9 [changed] updated rf-changelog