Clean up XML markup for clean rendering in HTML docs;
Change string resources for two-pane mode to bools;
Rename resource files w/ layout info from main.xml to layouts.xml.
Add support lib
Add HTML page
Change-Id: I88fc5cedb8f11dae9de019ba75593de2027de231
Adding the NewsReader sample.
This sample demonstrates how to design a UI for multiple screens and
is part of the "Designing for Multiple Screens" AndroidU lesson.
Change-Id: I462261933c68b3a40f9611fcf7153c25abdfcd5d
