Fix masking preference not retained

Fixes #64

Podfile

@@ -5,8 +5,8 @@ use_frameworks!
 def shared_pods
     #pod 'TunnelKit', '~> 1.6.1'
     #pod 'TunnelKit/LZO', '~> 1.6.1'
-    pod 'TunnelKit', :git => 'https://github.com/keeshux/tunnelkit', :commit => '914864c'
-    pod 'TunnelKit/LZO', :git => 'https://github.com/keeshux/tunnelkit', :commit => '914864c'
+    pod 'TunnelKit', :git => 'https://github.com/keeshux/tunnelkit', :commit => '5df614b'
+    pod 'TunnelKit/LZO', :git => 'https://github.com/keeshux/tunnelkit', :commit => '5df614b'
     #pod 'TunnelKit', :path => '../../personal/tunnelkit'
     #pod 'TunnelKit/LZO', :path => '../../personal/tunnelkit'
 end

Podfile.lock

@@ -15,8 +15,8 @@ PODS:
 
 DEPENDENCIES:
   - MBProgressHUD
-  - TunnelKit (from `https://github.com/keeshux/tunnelkit`, commit `914864c`)
-  - TunnelKit/LZO (from `https://github.com/keeshux/tunnelkit`, commit `914864c`)
+  - TunnelKit (from `https://github.com/keeshux/tunnelkit`, commit `5df614b`)
+  - TunnelKit/LZO (from `https://github.com/keeshux/tunnelkit`, commit `5df614b`)
 
 SPEC REPOS:
   https://github.com/cocoapods/specs.git:
@@ -26,12 +26,12 @@ SPEC REPOS:
 
 EXTERNAL SOURCES:
   TunnelKit:
-    :commit: 914864c
+    :commit: 5df614b
     :git: https://github.com/keeshux/tunnelkit
 
 CHECKOUT OPTIONS:
   TunnelKit:
-    :commit: 914864c
+    :commit: 5df614b
     :git: https://github.com/keeshux/tunnelkit
 
 SPEC CHECKSUMS:
@@ -40,6 +40,6 @@ SPEC CHECKSUMS:
   SwiftyBeaver: 4cc0080d2e23f980652e28978db11a5c9da39165
   TunnelKit: 6be99150922d3f14187dc29732032712dd4400e3
 
-PODFILE CHECKSUM: fa38cca58b420f3df9f1b2212ca56a0aa7e4949c
+PODFILE CHECKSUM: 5161d9339eefef777625c208787c05490a0202fe
 
 COCOAPODS: 1.6.1