Hello @gbr.bartek,
First of all, many thanks for sharing your ROSject with us. This really helps us in order to debug the issue you are having. In order to solve the problem, try the following.
First, change the branch of your parrot_ardrone sim to kinetic-gazebo7:
git checkout kinetic-gazebo7
Make sure also that you get the latest changes by:
git pull origin kinetic-gazebo7
And next, recompile and source your workspace:
catkin_make
source devel/setup.bash
This should solve the problem of the drone visualization.
Best,