Deprecated pr2_app_manager. Reason: Very willow specific, dependent on willow_maps (deprecated, non maintained, and very WG specific package). As well, dependent on unmaintained package app_manager. Maintaing this package would require too much scope for the little benefit. Other packages that have followed suite with deprecation in the move from groovy to Hydro are the husky_bringup and the turtlebot_bringup packages on wiki.ros.org