Revert "small update to twitter feed style, added tw link to about page"

This reverts commit decf007a29a43d3172a72383f6e396b7d1486ef4.
Revert "twitter gem, feed added to home, suggest url update, responsive css update"

This reverts commit bf35280723a75c5e3e4a28674b0b9b1f85d89502.