Add test for SSLSecurity; bump starscream

SocketIO-MacTests/SocketObjectiveCTest.m

@@ -11,6 +11,7 @@
 @import Foundation;
 @import XCTest;
 @import SocketIO;
+@import StarscreamSocketIO;
 
 @interface SocketObjectiveCTest : XCTestCase
 
@@ -98,4 +99,9 @@
     [manager removeSocketWithLabel:@"test"];
 }
 
+- (void)testSSLSecurity {
+    SSLSecurity* sec = [[SSLSecurity alloc] initWithUsePublicKeys:0];
+    sec.isReady = 0;
+}
+
 @end

Source/Starscream

@@ -1 +1 @@
-Subproject commit 13fc4730f36c645bd63ea28857df6a510181e0ea
+Subproject commit 53003d342e17c8cdf54924adfb8a18a056a58c3d