remove stats items that are just copies of shiptype items
remove stats structure from Lua, replace with properties
remove duplicate declaration of local 'player' var in ShipInfo.lua
Ship::UpdateFuelStats -- store fuel mass into correct property
document the new Ship properties
remove documentation for Ship:GetStats()

GetStats was removed in @318cddd00e1f32475abfd9aa0655ecf180b6f734.
Merge remote-tracking branch 'robn/lua-stat-properties'