Merge pull request #485 from friej715/gh-pages

adding citibike example to demos page
Updates docs/index.html with working releases link

This updates the url for the 'releases on github' link.
Merge pull request #501 from awilliams/patch-1

Updates docs/index.html with working releases link
Updated demos to work with new patterns
adding a page for data resources
Merge branch 'gh-pages' of github.com:nytlabs/streamtools into gh-pages