Slightly simplified billboards
Navlights: blink in a preset pattern when landing gear is down
More flexible light pattern
Preset light patterns for ships and landing pads
Light scaling
Add lights to placeholder_ground
Remove Loader::CreateLight
Navlights: serialization
Tombstone model
Update data/modules/Assassination/Languages.lua

Russian fixes
Update data/modules/BreakdownServicing/Languages.lua

Rus fixes
Update data/modules/CrewContracts/Languages.lua

Rus translation
Update data/ui/Languages.lua

Russian translation
Merge remote-tracking branch 'luomu/tombstone'
Merge remote-tracking branch 'johnbartholomew/russian-update'
model skin object to store and save customisable model elements
give each ship a skin
make the spinners take a skin
make SetLabel modify the ship skin
color->lua conversion method