workaround for iOS 8 bounds in landscape mode being flipped at startup (#567)
fix arch settings for iOS test project
Merge pull request #582 from cinder/ios_display_bounds_fix

iOS app::Display bounds is queried every call
listen to App::Setting for power management during init on iOS
set default mPowerManagement according to docs (false on desktop, true on mobile)
remove ‘a’ prefix from some argument names for consistency