* Improve GitHub templates
The existing templates are basically a copy for each type of issue (bug,
feature, doc) whereas we can make the template more specific to the task
at hand.
This PR includes:
- More specific sections depending on the type of issue
- More concise and direct instructions (NO NEED FOR FRUSTRATION CAPS!)
- Single-line comments (no need to guide people to avoid wrong edits)
- Improved paste area
- Better headings/titles
- No 'Summary' title for PRs (so commit information is placed correctly)
This PR would require some improvements to Ansibot.
* Remove controversial Ansibot stuff
Make it easier to get the first batch merged.
* Restore ISSUE_TEMPLATE.md
* Incorporate reviewer suggestions
* Make OS / ENVIRONMENT doc-related
* Rephrase Ansibot-related message
