Merge pull request factoriotools#41 from dtandersen/update-0.15.18

Updated to version 0.15.18

Merge pull request factoriotools#35 from Dianoga/0.15.15

Update to 0.15.15

Merge pull request factoriotools#31 from dtandersen/update-v0.15.13-e…

…xperimental

Update to v0.15.13-experimental

Merge pull request factoriotools#29 from dtandersen/update-v0.15.12-e…

…xperimental

Update to v0.15.12-experimental

Merge pull request factoriotools#24 from bkuhl/update-v0.15.11-experi…

…mental

Update to v0.15.11-experimental

Merge pull request factoriotools#22 from bkuhl/update-v0.15.10-experi…

…mental

Update to v0.15.10-experimental