don't swizzle existing bindings if coming from background
don't swizzle existing bindings if coming from background

mixpanel/mixpanel-iphone,mixpanel/mixpanel-iphone,carezone/mixpanel-iphone,mixpanel/mixpanel-iphone,mixpanel/mixpanel-iphone,mixpanel/mixpanel-iphone,carezone/mixpanel-iphone