Merge branch 'master' into node_fix

Author: manu-chroma

.github/ISSUE_TEMPLATE.md

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+This issue tracker is for reporting bugs in cwltool (the CWL reference implementation) itself. Please use the [Gitter channel](https://gitter.im/common-workflow-language/common-workflow-language) or [Biostars forum](https://www.biostars.org/) for general questions about using cwltool to create/run workflows or issues not related to cwltool. Don't forget to use cwl tag when posting on Biostars Forum.
+
+If you'd like to report a bug, fill out the template below and provide any extra information that may be useful / related to your problem. Ideally, you create an [a Minimal, Complete, and Verifiable example](http://stackoverflow.com/help/mcve) reproducing the problem before opening an issue to ensure it's not caused by something in your code.
+
+Before you submit, please delete this help text above the ---
+Thanks!
+---
+
+## Expected Behavior
+Tell us what should happen
+
+## Actual Behavior
+Tell us what happens instead
+
+## Workflow Code
+```
+Paste the template code (ideally a minimal example) that causes the issue
+
+```
+
+## Full Traceback
+```pytb
+Paste the full traceback in case there is an exception
+Run the workflow with ``--debug`` flag for more verbose logging 
+```
+
+## Your Environment
+* cwltool version: 
+Check using ``cwltool --version``