v1.5.5

• fix issue:stop GCDWebServer twice
• rewrite ProxyConfHelper、ProxyConfTool、SWBQRCodeWindowController
• tweak qr code layout
• update Alamofire to 5.4.3

v1.5.4

• rewrite scan QR code function
• rewrite principal class

v1.5.3

• rewrite launch at login function
• use Swift Package Manager to add Alamofire

v1.5.2

• rewrite showLogs method
• change feedback url

v1.5.1

• update ss-local to 3.3.5_1
• update privoxy to 3.0.32
• fix crash when password is nil

v1.5.0

• work on macOS Sierra(v10.12+)
• update pod
• update to Swift 5
• fix check update bug