Update issue templates

Fixes #698. Further:
- Add SUPPORT.md
- Move community help files to .github folder

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,42 @@
+---
+name: Bug report
+about: Report reproducible software issues so we can improve
+title: ''
+labels: ''
+assignees: ''
+---
+
+Please fill in the following information to report a problem with Cantera.
+If you have a question about using Cantera, please post it on our
+[Google Users' Group](https://groups.google.com/forum/#!forum/cantera-users).
+
+**System information**
+
+- Cantera version: [e.g. 2.4]
+- OS: [e.g. Windows 10]
+- Python/MATLAB version:
+
+**Expected behavior**
+
+A clear and concise description of what you expected to happen.
+
+**Actual behavior**
+
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+
+Steps to reproduce the behavior:
+
+1. Open '...'
+2. Run '....'
+3. See error '....'
+
+**Attachments**
+
+If applicable, attach scripts and/or input files to help explain your problem.
+Please do *not* attach screenshots of code or terminal output.
+
+**Additional context**
+
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest a new feature to enhance Cantera's capabilities
+title: ''
+labels: ''
+assignees: ''
+---
+
+**Is your feature request related to a problem? Please describe**
+
+A clear and concise description of the problem you're trying to solve.
+
+**Describe the desired solution**
+
+A clear and concise description of a new feature and its application. For
+example, "It would be great if Cantera could..."
+
+**Describe alternatives you have considered**
+
+A clear and concise description of any alternative solutions or features you
+have considered.
+
+**Additional context**
+
+Add any other context about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+Thanks for contributing code! Please include a description of your change and
+check your PR against the list below (for further questions, refer to the
+[contributing guide](https://github.com/Cantera/cantera/blob/master/CONTRIBUTING.md)).
+
+- [ ] There is a clear use-case for this code change
+- [ ] The commit message has a short title & references relevant issues
+- [ ] Build passes (`scons build` & `scons test`) and unit tests address code coverage
+
+**Please fill in the issue number this pull request is fixing**
+
+Fixes #
+
+**Changes proposed in this pull request**
+
+-
+-
+-

.github/SUPPORT.md

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+# How to get support
+
+> This project has a [Code of Conduct](https://github.com/Cantera/cantera/blob/master/CODE_OF_CONDUCT.md).
+> By interacting with this repository, organisation, or community you agree to
+> abide by its terms.
+
+For **help**, **support** and **questions** please create a post on the
+**[Cantera Users' Group](https://groups.google.com/group/cantera-users)**.
+Any discussion of Cantera functionality such as how to use certain function
+calls, syntax problems, input files, etc. should be directed to the Users' Group.
+
+Further, the **[Cantera Gitter Chat](https://gitter.im/Cantera/Lobby)** is an
+infrequently monitored chat room that can be used to discuss tangentially-related
+topics such as how to model the underlying physics of a problem, share cool
+applications that you have developed, etc.
+
+Please **_do not_** raise an issue on GitHub unless it is a bug report or a
+feature request. Issues that do not fall into these categories will be closed.
+If you're not sure, please make a post on the
+[Users' Group](https://groups.google.com/group/cantera-users) and someone will
+be able to help you out.
+
+## Documentation
+
+The [documentation](https://cantera.org/documentation)
+offers a number of starting points:
+
+- [Python tutorial](https://cantera.org/tutorials/python-tutorial.html)
+- [Application Examples in Python (Jupyter)](https://github.com/Cantera/cantera-jupyter#cantera-jupyter)
+- [A guide to Cantera's input file format](https://cantera.org/tutorials/input-files.html)
+- [Information about the Cantera community](https://cantera.org/community.html)
+
+Documentation for the [development version of
+Cantera](https://cantera.org/documentation/dev-docs.html) is also available.
+
+## Contributions
+
+See [`CONTRIBUTING.md`](https://github.com/Cantera/cantera/blob/master/CONTRIBUTING.md) on how to contribute.

ISSUE_TEMPLATE.md

@@ -1,14 +0,0 @@
-### Cantera version
-
-### Operating System
-
-### Python/MATLAB version
-
-### Expected Behavior
-
-### Actual Behavior
-
-### Steps to reproduce
-1.
-2.
-3.

PULL_REQUEST_TEMPLATE.md

@@ -1,8 +0,0 @@
-Please fill in the issue number this pull request is fixing:
-
-Fixes #
-
-Changes proposed in this pull request:
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