airfoil: remove www from homepage and update uninstall and zap stanzas

Casks/a/airfoil.rb

@@ -5,7 +5,7 @@ cask "airfoil" do
   url "https://rogueamoeba.com/airfoil/mac/download/Airfoil.zip"
   name "Airfoil"
   desc "Sends audio from computer to outputs"
-  homepage "https://www.rogueamoeba.com/airfoil/mac/"
+  homepage "https://rogueamoeba.com/airfoil/mac/"
 
   livecheck do
     url "https://rogueamoeba.net/ping/versionCheck.cgi?format=sparkle&system=1231&bundleid=com.rogueamoeba.airfoil&platform=osx&version=#{version.no_dots}8000"
@@ -18,20 +18,21 @@ cask "airfoil" do
   app "Airfoil/Airfoil Satellite.app"
   app "Airfoil/Airfoil.app"
 
-  uninstall delete: "/Library/Audio/Plug-Ins/HAL/InstantOn.driver",
-            quit:   [
-              "com.rogueamoeba.Airfoil",
-              "com.rogueamoeba.AirfoilSpeakers",
-            ]
+  uninstall quit: [
+    "com.rogueamoeba.Airfoil",
+    "com.rogueamoeba.AirfoilSpeakers",
+  ]
 
   zap trash: [
     "~/Library/Application Support/Airfoil",
     "~/Library/Application Support/Airfoil Satellite",
     "~/Library/Caches/com.rogueamoeba.Airfoil",
     "~/Library/Caches/com.rogueamoeba.AirfoilSpeakers",
+    "~/Library/HTTPStorages/com.rogueamoeba.Airfoil/",
+    "~/Library/HTTPStorages/com.rogueamoeba.AirfoilSpeakers/",
     "~/Library/Preferences/com.rogueamoeba.Airfoil.plist",
     "~/Library/Preferences/com.rogueamoeba.AirfoilSpeakers.plist",
-    "~/Library/Saved Application State/com.rogueamoeba.Airfoil.savedState",
-    "~/Library/Saved Application State/com.rogueamoeba.AirfoilSpeakers.savedState",
+    "~/Library/WebKit/com.rogueamoeba.Airfoil/",
+    "~/Library/WebKit/com.rogueamoeba.AirfoilSpeakers/",
   ]
 end