Update appcast.xml for 0.9.68
Update appcast.xml for 0.9.68

CommandPost/CommandPost-App,asmagill/hammerspoon,asmagill/hammerspoon,CommandPost/CommandPost-App,latenitefilms/hammerspoon,asmagill/hammerspoon,CommandPost/CommandPost-App,Habbie/hammerspoon,Habbie/hammerspoon,Habbie/hammerspoon,latenitefilms/hammerspoon,asmagill/hammerspoon,Hammerspoon/hammerspoon,Hammerspoon/hammerspoon,latenitefilms/hammerspoon,Hammerspoon/hammerspoon,asmagill/hammerspoon,cmsj/hammerspoon,CommandPost/CommandPost-App,latenitefilms/hammerspoon,cmsj/hammerspoon,Habbie/hammerspoon,Hammerspoon/hammerspoon,latenitefilms/hammerspoon,CommandPost/CommandPost-App,cmsj/hammerspoon,asmagill/hammerspoon,Habbie/hammerspoon,cmsj/hammerspoon,cmsj/hammerspoon,Habbie/hammerspoon,CommandPost/CommandPost-App,latenitefilms/hammerspoon,Hammerspoon/hammerspoon,cmsj/hammerspoon,Hammerspoon/hammerspoon