fixed issue with hidden shiny-alert fields in shiny version 0.11.1+, which was introduced due to the switch to bootstrap 3.
fixed issue with hidden shiny-alert fields in shiny version 0.11.1+, which was introduced due to the switch to bootstrap 3.

vrann/ShinySky,vrann/ShinySky,vrann/ShinySky,vrann/ShinySky,vrann/ShinySky