RFR: JDK-8199155 : Accessibility issues in jdk.jdi

[Alex Menkov]

Hi,

please review the following for for
https://bugs.openjdk.java.net/browse/JDK-8199155

webrev:
http://cr.openjdk.java.net/~amenkov/accessibility/webrev/

The fix adds standard "banner", "navigation", "main" regions
and fixes "<dl> without <dt>" issue.
For <dl><dd> styles which are used by most browsers are used:
dl { margin-top: 1em; margin-bottom: 1em; }
dd { margin-left: 40px; }

--alex