0.1.5:
  * mod setting: green signal delay

0.1.4:
  * bugfix for train-pauser reverting to constant-combinator

0.1.3:
  * mod setting for train backlog per station

0.1.2:
  * use on_load

0.1.0:
  * entity remove lua error
  * icons

0.1.0:
  * Initial release
