Update Roboto to version 1.200311

This updates Roboto to the latest version. This change should fix a
number of problems, including bug 7306377 (vietnamese o with horn), bug
6679075 (vietnamese u+1ee1), bug 7568194 (cyrillic yeru), and is also on
the critical path of bug 7291977 (t comma accent), bug 8278292 (E
ogonek) and likely others.

Change-Id: Ife3db2aec4784a54cfe0287b61eac8339c198c71