📝 Add issue template

ISSUE_TEMPLATE.md

@@ -0,0 +1,38 @@
+**Note: for support questions, please use stackoverflow**. This repository's issues are reserved for feature requests and bug reports.
+
+* **I'm submitting a ... **
+  - [ ] bug report
+  - [ ] feature request
+  - [ ] support request => Please do not submit support request here, see note at the top of this template.
+
+
+* **Do you want to request a *feature* or report a *bug*?**
+
+
+
+* **What is the current behavior?**
+
+
+
+* **If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem** via
+https://plnkr.co or similar (you can use this template as a starting point: http://plnkr.co/edit/tpl:AvJOMERrnz94ekVua0u5).
+
+
+
+* **What is the expected behavior?**
+
+
+
+* **What is the motivation / use case for changing the behavior?**
+
+
+
+* **Please tell us about your environment:**
+
+- version: 2.0.0-beta.X
+- Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]
+- Language: [all | TypeScript X.X | ES6/7 | ES5 | Dart]
+
+
+
+* **Other information** (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, gitter, etc)