Add support for manually activating censorship circumvention.

// FREEBIE

src/Network/API/TSNetworkManager.m

@@ -14,7 +14,6 @@ NSString *const TSNetworkManagerDomain = @"org.whispersystems.signal.networkMana
 
 @interface TSNetworkManager ()
 
-@property (nonatomic, readonly, strong) OWSSignalService *signalService;
 typedef void (^failureBlock)(NSURLSessionDataTask *task, NSError *error);
 
 @end
@@ -27,22 +26,19 @@ typedef void (^failureBlock)(NSURLSessionDataTask *task, NSError *error);
     static TSNetworkManager *sharedMyManager = nil;
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
-        OWSSignalService *signalService = [OWSSignalService sharedInstance];
+        sharedMyManager = [[self alloc] initDefault];
-        sharedMyManager = [[self alloc] initWithSignalService:signalService];
     });
     return sharedMyManager;
 }
 
 
-- (instancetype)initWithSignalService:(OWSSignalService *)signalService
+- (instancetype)initDefault
 {
     self = [super init];
     if (!self) {
         return self;
     }
 
-    _signalService = signalService;
-
     OWSSingletonAssert();
 
     return self;
@@ -59,7 +55,7 @@ typedef void (^failureBlock)(NSURLSessionDataTask *task, NSError *error);
     void (^failure)(NSURLSessionDataTask *task, NSError *error) =
         [TSNetworkManager errorPrettifyingForFailureBlock:failureBlock];
 
-    AFHTTPSessionManager *sessionManager = self.signalService.HTTPSessionManager;
+    AFHTTPSessionManager *sessionManager = [OWSSignalService sharedInstance].HTTPSessionManager;
 
     if ([request isKindOfClass:[TSVerifyCodeRequest class]]) {
         // We plant the Authorization parameter ourselves, no need to double add.

src/Network/OWSCensorshipConfiguration.m

@@ -22,9 +22,9 @@ NSString *const OWSCensorshipConfigurationReflectorHost = @"signal-reflector-mee
         }
     }
 
-    // Fronting should only be used for countries specified in censoredCountryCodes,
+    // Fronting should only be auto-activated for countries specified in censoredCountryCodes,
-    // all of which have a domain specified.
+    // all of which have a domain specified.  However users can also manually enable
-    OWSAssert(domain);
+    // censorship circumvention.
     if (!domain) {
         domain = @"google.com";
     }

src/Network/OWSSignalService.m

@@ -54,6 +54,7 @@ NSString *const kNSNotificationName_IsCensorshipCircumventionActiveDidChange =
 
     [self observeNotifications];
 
+    [self updateHasCensoredPhoneNumber];
     [self updateIsCensorshipCircumventionActive];
 
     OWSSingletonAssert();