<AWT Dev> RFR Doclint cleanup of java.awt

[roger riggs]

This changeset addresses the warnings and errors of doclint and
improves the quality of the generated html.
No spec or implementation is changed by this changeset.

The changes address issues including html syntax, accessibility issues,
and improper html tag use. Refer to the error log attached to the bug 
report [1] for details.

The changes are concisely found in the jdk.patch file.

Please review:
    http://cr.openjdk.java.net/~rriggs/webrev-lint-awt-8028019/

Thanks, Roger


[1] https://bugs.openjdk.java.net/browse/JDK-8028019