Clean up the callout handling. Since we are overriding the map view's tap handler, we need to implement out own code to pop up a callout.
Clean up the callout handling. Since we are overriding the map view's tap handler, we need to implement out own code to pop up a callout.

Signed-off-by: Blake Skinner <f2809f73afc906ecbb5ce29ea24012b18700bcc7@mit.edu>

smartcop/MIT-Mobile-for-iOS,xNUTs/MIT-Mobile-for-iOS,MIT-Mobile/MIT-Mobile-for-iOS,MIT-Mobile/MIT-Mobile-for-iOS,xNUTs/MIT-Mobile-for-iOS,smartcop/MIT-Mobile-for-iOS