Fixing broken link
1. Fixing links to mailing lists.
2. Taking out now-redundant configuration variable.
Fixing date in blog post
Merge pull request #109 from gvwilson/fixing-broken-mailing-list-links

Fixing links to our mailing lists.
Adding link to announcements list
Fixing typo in citation file
New webpage for John's bootcamp for incoming grad students.
Merge pull request #110 from amyrbrown/chicago-webpage

New webpage for John's bootcamp for incoming grad students.
Changed wording for "who" section to reflect actual audience
Merge pull request #111 from amyrbrown/chicago-webpage

Changed wording for "who" section to reflect actual audience
Fixed filename of include file for content.
Merge pull request #112 from amyrbrown/chicago-fix

Fixed filename of include file for content.
Merge branch 'adding-announcements-mailing-list'
Merge branch 'master' of github.com:swcarpentry/site