[iOS] fix where non-retina iPad simulator is not launch
[iOS] fix where non-retina iPad simulator is not launch

if string which indicates to launch iOS simulator for iPad that contains single quotation, (like 'iPad')
non-retina iPad simulator is not launch.

HipByte/RubyMotion,katsuyoshi/RubyMotion,incbee/RubyMotion,jjaffeux/RubyMotion,HipByte/RubyMotion,katsuyoshi/RubyMotion,beni55/RubyMotion,katsuyoshi/RubyMotion,hboon/RubyMotion,beni55/RubyMotion,beni55/RubyMotion,incbee/RubyMotion,beni55/RubyMotion,incbee/RubyMotion,katsuyoshi/RubyMotion,HipByte/RubyMotion,jjaffeux/RubyMotion,hboon/RubyMotion,hboon/RubyMotion,incbee/RubyMotion,jjaffeux/RubyMotion,jjaffeux/RubyMotion