Added heat exchanger list.
Revert "small layout change.  prep for adding heat exchangers"

This reverts commit 9f7829909b3db6981836eef8d0cba971baf60bd0.
Revert "Added heat exchanger list."

This reverts commit 576cb25bd73320af3eb43073f3050f80bacfa079.
Changed equipment pages
Lots of layout and structure.