about.md: Change contact info to use http://ldap.psu.edu
about.md: Remove section 'First person'
about.md: Move section 'Links' to follow 'Short CV'
about.md: Edit section 'Biography'
about.md: Remove TOC
about.md: Update Academia.edu profile link
about.md: Change section 'Other sites' to 'Course sites'
about.md: Add descriptive text in section 'Other'
_config.yml: Edit site name
_config.yml: Edit site tagline
Replace site logo
Replace avatar
Add Bitbucket to social networking links in page footer
Add Pinboard to social networking links in page footer
Remove owner and date from page footer
Replace favicon
Update lennon-cv.pdf
about.md: Update Bitbucket URL
_config.yml: Convert tabs to spaces