Support click-through in BrowserWindow
Support click-through in BrowserWindow

Now BrowserWindow.Clickable will change whether or not mouse clicks
go through it.

sqt/cactbot,sqt/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,sqt/cactbot,quisquous/cactbot,sqt/cactbot,sqt/cactbot,quisquous/cactbot,quisquous/cactbot