Automatic merge of T1.5.1-376-g885592329 and 14 pull requests

- Pull request #570 at de7a14f: Experimental glTF 2.0 support with PBR lighting
- Pull request #732 at 36b4b6d: Improvements for air brakes
- Pull request #751 at 00981a2: Web interface to control cab controls with external hardware
- Pull request #799 at dc03850: Consolidated wind simulation
- Pull request #802 at 4d198e4: Added support for activity location events to the TrackViewer
- Pull request #803 at 7157e08: Various adjustments to steam adhesion
- Pull request #813 at ff454eb: Refactored garbage generators
- Pull request #815 at a5cc165: chore: Add GitHub automatic release notes configuration
- Pull request #818 at 745d101: Allow independent drive axles for locomotives
- Pull request #820 at 6e7a5b6: delay option for masterkey does not delay switch off
- Pull request #821 at e0fa5a8: Adds suppression of safety valves
- Pull request #822 at 82ef736: battery switch two buttons option in combination with a delay
- Pull request #823 at 5e1c03b: Select track sound volume percent retained in .eng and .wag files
- Pull request #824 at f16ebed: Update Readme.md

Docs/Readme.md

@@ -19,9 +19,10 @@ Open Rails is a free train simulator supporting the world's largest range of dig
 * [Join the community](http://www.openrails.org/share/community/?utm_campaign=documentation&utm_source=readme&utm_medium=referral)
 * [Report bugs or offer suggestions](http://www.openrails.org/contribute/reporting-bugs/?utm_campaign=documentation&utm_source=readme&utm_medium=referral)
 * [Create content](http://www.openrails.org/contribute/building-models/?utm_campaign=documentation&utm_source=readme&utm_medium=referral)
+* [How to propose and submit work](Contributing.md)
 * [Write code](http://www.openrails.org/contribute/developing-code/?utm_campaign=documentation&utm_source=readme&utm_medium=referral)
 * [Join the team](http://www.openrails.org/contribute/joining-the-team/?utm_campaign=documentation&utm_source=readme&utm_medium=referral)
-* [More details](Contributing.md)
+
 
 ## Build status