ios-sim showdevicetypes prints to stderr

[shazron]

https://github.com/phonegap/ios-sim/blob/62cb42394b53368fa36bb9f44c0f8684bdee7c65/Source/iPhoneSimulator.m#L235

it should print to stdout.

Workaround:
To redirect the stderr output to stdout, do

ios-sim showdevicetypes 2>&1