删除 Parallels Desktop 6 的残余垃圾

/Library/QuickLook/ParallelsQL.qlgenerator/
/Library/Parallels/
/Library/Spotlight/ParallelsMD.mdimporter/
/Library/Preferences/Parallels/
/Library/LaunchDaemons/com.parallels.desktop.launchdaemon.plist
~/Library/Preferences/Parallels/

虽然 Parallels Desktop 的安装程序中自带卸载程序，但上面这些还是有几率卸不掉的