ground stations have no static slots
expose station type to Lua, and only try to add bulk ships to orbitals
disable DGA mouse on Linux by default, and workaround SDL's alternative implementation not warping the mouse after grab. fixes #5
change the count of bulk ships so we don't flood systems with high population but few orbitals
Fix system text refresh when scrolling left and right on a touchpad
Use left mouse button enum
Use SDL button names instead of numbers in MouseButtonEvent code
Merge remote-tracking branch 'robn/disable-linux-dga-mouse'
add extra issue ref to changelog
Merge remote-tracking branch 'bitplane/gui-fixes'
add availability codedoc to Game.StartGame, Game.LoadGame and Engine.Quit
Merge remote-tracking branch 'robn/parking-cleanup'
don't dispatch key bindings when the console is active

Except for the toggle console key, of course.

fixes #1364
Merge remote-tracking branch 'johnbartholomew/ignore-keybinds-in-console'
Fix dumb bug in atmospheric drag calc, restore previous behaviour
Merge remote-tracking branch 'jaj22/atmosforce-fix'