Convert instances of customer ID as a string to a number.

Mobile Buy SDK/Mobile Buy SDK Tests/BUYClientTest.m

@@ -342,7 +342,7 @@
 					   [BUYAccountCredentialItem itemWithPassword:@"12345"]
 					   ];
 	BUYAccountCredentials *credentials = [BUYAccountCredentials credentialsWithItems:items];
-	NSString *customerID = @"12345";
+	NSNumber *customerID = @12345;
 	NSString *token      = @"12345";
 	BUYRequestOperation *task = (BUYRequestOperation *)[self.client activateCustomerWithCredentials:credentials customerID:customerID token:token callback:^(BUYCustomer *customer, BUYCustomerToken *token, NSError *error) {
 		

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient+Customers.h

@@ -116,7 +116,7 @@ typedef void (^BUYDataOrderBlock)(BUYOrder * _Nullable order, NSError * _Nullabl
  *
  *  @return The associated BUYRequestOperation
  */
-- (NSOperation *)activateCustomerWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSString *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block;
+- (NSOperation *)activateCustomerWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSNumber *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block;
 
 /**
  *  PUT /api/customers/:customer_id
@@ -141,7 +141,7 @@ typedef void (^BUYDataOrderBlock)(BUYOrder * _Nullable order, NSError * _Nullabl
  *
  *  @return The associated BUYRequestOperation
  */
-- (NSOperation *)resetPasswordWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSString *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block;
+- (NSOperation *)resetPasswordWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSNumber *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block;
 
 #pragma mark - Token -
 

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient+Customers.m

@@ -66,9 +66,9 @@
 	}];
 }
 
-- (NSOperation *)activateCustomerWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSString *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block
+- (NSOperation *)activateCustomerWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSNumber *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block
 {
-	NSURL *url = [self urlForCustomersActivationWithID:customerID parameters:@{ @"token": token }];
+	NSURL *url = [self urlForCustomersActivationWithID:customerID.stringValue parameters:@{ @"token": token }];
 	
 	return [self putRequestForURL:url object:credentials.JSONRepresentation completionHandler:^(NSDictionary *json, NSHTTPURLResponse *response, NSError *error) {
 		NSString *email = json[@"customer"][@"email"];
@@ -94,9 +94,9 @@
 	}];
 }
 
-- (NSOperation *)resetPasswordWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSString *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block
+- (NSOperation *)resetPasswordWithCredentials:(BUYAccountCredentials *)credentials customerID:(NSNumber *)customerID token:(NSString *)token callback:(BUYDataCustomerTokenBlock)block
 {
-	NSURL *url = [self urlForCustomersPasswordResetWithID:customerID parameters:@{ @"token": token }];
+	NSURL *url = [self urlForCustomersPasswordResetWithID:customerID.stringValue parameters:@{ @"token": token }];
 	
 	return [self putRequestForURL:url object:credentials.JSONRepresentation completionHandler:^(NSDictionary *json, NSHTTPURLResponse *response, NSError *error) {
 		NSString *email = json[@"customer"][@"email"];