v0.20.0

• Fixed virtual device bug causing browser to unsubscribe to events that were being used in an app. #141
• .use(Device) no longer calls .init on the device twice. #142
• Tests now passing on Windows #143
• Virtual device implements .createReadStream() #147
• Medea updated to fix issues found while running on Windows.
• calypso-query-decompiler at 0.4.0 #148
• medea at 0.15.0 #149
• medeadown at 1.1.4 #149