Fix IE11 websockets.

Closes qzind#6
Improves readability of bitwise logic block

src/qz/deploy/WindowsDeploy.java

@@ -77,39 +77,48 @@ public boolean hasDesktopShortcut() {
     }
 
     /**
-     * Enables websockets in IE by treating "localhost" the same as an internet zone
-     * This setting must be unchecked in order for websockets to communicate back to localhost via:
-     * - Internet Options > Security > Local Intranet > Sites > [ ] Include (intranet) sites not listed in other zones
-     * Note, the IE settings dialog won't reflect this change until after a browser restart
+     * Enables websockets in IE by checking "Automatically detect intranet network"
      *
      * @return true if successful
      */
     public static boolean configureIntranetZone() {
         String path = "HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\1";
         String name = "Flags";
-        int mask = 16;
+        int value = 256;
 
-        // If the above mask exists, remove it using XOR, thus disabling this default setting
+        // If the above value does not exist, add it using bitwise OR, thus enabling this setting
         int data = ShellUtilities.getRegistryDWORD(path, name);
-        return !(data != -1 && (data & mask) == mask) || ShellUtilities.setRegistryDWORD(path, name, data ^ mask);
+        if (data != -1) {
+            if ((data & value) != value) {
+                return ShellUtilities.setRegistryDWORD(path, name, data | value);
+            }
+            return true; // already set
+        }
+        return false;
     }
 
     /**
-     * Enables websockets in Microsoft Edge by allowing loopback connections to  "localhost"
-     * This setting must be checked in order for websockets to communicate back to localhost via:
-     * - about:flags > Developer Settings > Allow localhost loopback (this might put your device at risk)
-     * Due to the volatility of this registry path, this registry key path may need to change over time
+     * Legacy Edge version: Configure loopback connections via
+     * - about:flags > Developer Settings > Allow localhost loopback
+     *
+     * Modern Edge versions: Utilize CheckNetIsolation.exe via desktop installer instead.
      *
      * @return true if successful
      */
     public static boolean configureEdgeLoopback() {
         String path = "HKCU\\Software\\Classes\\Local Settings\\Software\\Microsoft\\Windows\\CurrentVersion\\AppContainer\\Storage\\microsoft.microsoftedge_8wekyb3d8bbwe\\MicrosoftEdge\\ExperimentalFeatures";
         String name = "AllowLocalhostLoopback";
-        int mask = 1;
+        int value = 1;
 
-        // If the above mask exists, remove it using XOR, thus disabling this default setting
+        // If the above value does not exist, add it using bitwise OR, thus enabling this setting
         int data = ShellUtilities.getRegistryDWORD(path, name);
-        return !(data != -1 && (data & mask) != mask) || ShellUtilities.setRegistryDWORD(path, name, data | mask);
+        if (data != -1) {
+            if ((data & value) != value) {
+                return ShellUtilities.setRegistryDWORD(path, name, data | value);
+            }
+            return true; // already set
+        }
+        return false;
     }
 
     /**