Intermittent crashing when testing against iOS Simulators.

[jmoody]

Looks like a memory leak.

Thread 5 Crashed:: Dispatch queue: calabash.uia_queue
0   libobjc.A.dylib                 0x01abb0be objc_msgSend + 26
1   CoreFoundation                  0x01cf6e6b -[__NSCFString isEqualToString:] + 59
2   chou-cal                        0x0012b56c -[LPUIAUserPrefsChannel stringForXcode61PreferencesPlistWithUserLibraryPath:plistName:tokenKey:tokenValue:] + 364 (LPUIAUserPrefsChannel.m:283)
3   chou-cal                        0x0012b2f1 __49-[LPUIAUserPrefsChannel simulatorPreferencesPath]_block_invoke + 817 (LPUIAUserPrefsChannel.m:253)
4   libdispatch.dylib               0x0211d4d0 _dispatch_client_callout + 14
5   libdispatch.dylib               0x0210ce12 dispatch_once_f + 184
6   libdispatch.dylib               0x0210cd55 dispatch_once + 31
7   chou-cal                        0x0012af88 -[LPUIAUserPrefsChannel simulatorPreferencesPath] + 136 (once.h:68)
8   chou-cal                        0x0012ab31 -[LPUIAUserPrefsChannel simulatorRequestExecutionOf:] + 65 (LPUIAUserPrefsChannel.m:140)
9   chou-cal                        0x0012aa6b -[LPUIAUserPrefsChannel requestExecutionOf:] + 59 (LPUIAUserPrefsChannel.m:122)
10  chou-cal                        0x0012a58c __51-[LPUIAUserPrefsChannel runAutomationCommand:then:]_block_invoke + 60 (LPUIAUserPrefsChannel.m:82)

[jmoody]

Obviated. Offending code removed.