Fixing another broken date in a blog post
Fixing URL in blog post
Fixing link to upcoming bootcamps
Adding blog post about 1999 Brookhaven meeting
Incorporating Justin Kitzes' updates to audience descriptions
Blog post about other people's videos
1. Pulled information about badges out of `standard_config.yml` and put it into `badges_config.yml`.
2. Modified `Makefile` and `bin/preprocess.py` accordingly.
Going forward, `badges_config.yml` will be auto-generated from administrative data stored outside this repo and checked in every once in a while.
Merge branch 'blog-misc-videos'
Merge branch 'updating-audience-description'