Refactored local_comments (ongoing)
Initial display if issues in synth-tree browser.

This in ongoing work! Currently we're fetching all issues in the
'feedback' repo, regardless of location. And doing it with the OAuth
token from bot user 'opentreeapi', instead of the logged-in user.
Format JSON dates, clean up message bodies.
Improve behavior and style of GitHub issues

Also timezone fixes for naive/lagging dates; improved layout for
issues with "flattened" comments; more functionality for adding issues
and comments.
Enabled other types of location query, + cleanup.
Cleanup and prep for (optional) auth on GitHub.
Tweaks to push + deployment tools for GitHub auth.
Moving main webapp to GitHub auth and login.

Most if the new logic here is adapted from the existing curation app.
Cleanup of Janrain code and related web2py patch
More cleanup and improved text prompts
Tweaks to reply placement
Migration of add-comment tools (ongoing)
Improved layout and logic for comments
Fixes for new topics & comments
Support deleting comments and closing issues
Clean up unused 'dbco' code (local web2py storage)
Complete footer information for all pages/nodes.
Cleanup of footer template
Validate comment fields, clarify options.
Merge pull request #262 from OpenTreeOfLife/feedback-in-github-issues

Feedback in github issues