First stab at using embedded timelines for twitter feeds.

* Twitter failed after 97 widgets (perhaps they count deleted widgets and we hit the 100 widget limit).
* This script was used to create the widgets: https://gist.github.com/jarib/55ac4a41057e6c270f5c
Refactor + add remaining reps.
Include header.
Removing widget header/footer, styling link color, setting width to 100%. Removing previous Twitter code.
Merge remote-tracking branch 'origin/embedded-timelines'