hg: lambda/lambda/jdk: Final spec and API tweaks to Optional

[brian.goetz at oracle.com]

Changeset: bc8ab76ab484
Author:    briangoetz
Date:      2013-06-21 16:34 -0400
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/bc8ab76ab484

Final spec and API tweaks to Optional

! src/share/classes/java/util/Optional.java
! test/java/util/Optional/Basic.java