Fixes for homepage issues

This pull request:

1. Fixes #96: took out a console.log
2. Fixes #97: project badges now link to the project pages
3. Fixed #98: if there's $0 for a project, the badge doesn't show a sliver of completeness
4. Makes the project badges more responsive for mobile: two per row on medium screens, 1 per row on small screens.
5. Adds .gitignore for a file called .revolv_bash_profile, since I started using it for containing all the environment variables we always need to set, and I thought others could too.

Let me now if anything needs changing @vivekraghuram!