Add WinRT geolocation classes and example (#633, #635,
@timsneath/@halildurmus)
Convert acryonyms in enums, methods and properties to match Dart style guide
(#637, #649, @halildurmus)
Generalize map collection interfaces to support enum arguments (#638,
@halildurmus)
Add extra Bluetooth APIs (#640, @timsneath)
winrtInitialize and winrtUninitialize are no longer required. Windows
Runtime classes automatically activate the runtime as required for a given
thread. Added example of interaction between Dart isolates and COM apartments
(#642, @halildurmus/@timsneath)