Consolidating bibliography
1.  Adding configuration variable for Mozilla Science Lab URL.
2.  Switching MSL logo from SVG to PNG.
3.  Updating home page to use both.
Merge pull request #254 from gvwilson/tidy-up-logo

Fixing Mozilla Science Lab logo
A one-line fix to the audience page
Fixing 'boot camp' occurrences
Fixing more occurrences of 'boot camp'
Merge pull request #255 from gvwilson/fixing-bootcamp-wording

Fixing bootcamp wording
1. Updating Makefile to rebuild when bibliography file changes.
2. Reformatting paper entries in bibliography.
Merge pull request #256 from gvwilson/reorganize-bibliography

Reorganize bibliography