Fix for scrolling when TOC onscreen.

Needed because we added doctype so no longer using "quirks" mode.
So we we need to specify "px" for spacer height now.

Change-Id: Iea4422fbdad723daffb0201c95211bede07fb8b8
Cleaned up About page text a bit.

Change-Id: I64306bafd293b12d317a379d54f3884a582db531
Merge branch 'master' into work-libs