Crash if disconnected while setting up app icon

[joeljfischer]

Bug Report

If we are in the middle of setting up the app icon and disconnect, we are seeing a crash.

OS & Version Information

• iOS Version: n/a
• SDL iOS Version: 5.1-in-progress
• Testing Against: Ford vehicle

Test Case, Sample Code, and / or Example App

Last Exception Backtrace:
0   CoreFoundation                	0x183ae6364 __exceptionPreprocess + 124 (NSException.m:166)
1   libobjc.A.dylib               	0x182d2c528 objc_exception_throw + 56 (objc-exception.mm:521)
2   SmartDeviceLink               	0x10390d110 -[SDLStateMachine transitionToState:] + 864 (SDLStateMachine.m:69)
3   SmartDeviceLink               	0x1038e4e98 __52-[SDLLifecycleManager didEnterStateSettingUpAppIcon]_block_invoke + 96 (SDLLifecycleManager.m:296)
4   SmartDeviceLink               	0x1038e61cc __54-[SDLLifecycleManager sdl_sendAppIcon:withCompletion:]_block_invoke_2 + 584 (SDLLifecycleManager.m:375)
5   SmartDeviceLink               	0x1038ac5f8 -[SDLResponseDispatcher clear] + 592 (SDLResponseDispatcher.m:132)
6   SmartDeviceLink               	0x1038e34a8 -[SDLLifecycleManager sdl_stopManager:] + 828 (SDLLifecycleManager.m:206)
7   SmartDeviceLink               	0x1038e3160 -[SDLLifecycleManager didEnterStateReconnecting] + 48 (SDLLifecycleManager.m:196)
8   SmartDeviceLink               	0x10390d81c -[SDLStateMachine transitionToState:] + 2668 (SDLStateMachine.m:105)
9   SmartDeviceLink               	0x1038e7598 -[SDLLifecycleManager transportDidDisconnect] + 796 (SDLLifecycleManager.m:460)
10  CoreFoundation                	0x183a7833c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 20 (CFNotificationCenter.c:661)
11  CoreFoundation                	0x183a778dc _CFXRegistrationPost + 420 (CFNotificationCenter.c:163)
12  CoreFoundation                	0x183a77640 ___CFXNotificationPost_block_invoke + 60 (CFNotificationCenter.c:1060)
13  CoreFoundation                	0x183af5024 -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1408 (CFXNotificationRegistrar.m:163)
14  CoreFoundation                	0x1839adf60 _CFXNotificationPost + 380 (CFNotificationCenter.c:1057)
15  Foundation                    	0x1843db348 -[NSNotificationCenter postNotificationName:object:userInfo:] + 68 (NSNotification.m:543)
16  SmartDeviceLink               	0x1039070c8 __61-[SDLNotificationDispatcher postNotificationName:infoObject:]_block_invoke + 116 (SDLNotificationDispatcher.m:28)
17  libdispatch.dylib             	0x183462a54 _dispatch_call_block_and_release + 24 (init.c:994)
18  libdispatch.dylib             	0x183462a14 _dispatch_client_callout + 16 (object.m:502)
19  libdispatch.dylib             	0x1834a3c80 _dispatch_main_queue_callback_4CF$VARIANT$armv81 + 968 (inline_internal.h:2500)
20  CoreFoundation                	0x183a8e544 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 (CFRunLoop.c:1815)
21  CoreFoundation                	0x183a8c120 __CFRunLoopRun + 2012 (CFRunLoop.c:3111)
22  CoreFoundation                	0x1839abe58 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3245)
23  GraphicsServices              	0x185858f84 GSEventRunModal + 100 (GSEvent.c:2245)
24  UIKit                         	0x18d02b67c UIApplicationMain + 236 (UIApplication.m:3956)