Add sponsor logos.
Ignore .DS_Store files.
Add CCTV logo.
Create tracks page with a list of projects for each track.
Link to tracks.
Link to tracks page, rather than homepage.
Add Front Porch Forum logo.
Resize logos to 150 pixels in width.
Add Competitive Computing logo.
Swap Competitive Computing logo.
Add sponsors section.
Update Competitive Computing logo.
Link to GitHub repos of civic app projects.
Update link elements within headings.
Update CSS support for link elements within headings.
Update sponsor logos.
Update section ID name.
Merge branch 'refs/heads/features/sponsors' into develop
Merge branch 'refs/heads/features/tracks' into develop