hg: jdk9/dev/jdk: 8180319: Update Serialization spec to omit obsolete serialver -show and change history

[roger.riggs at oracle.com]

Changeset: ef9954f6896b
Author:    rriggs
Date:      2017-05-16 09:42 -0400
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/ef9954f6896b

8180319: Update Serialization spec to omit obsolete serialver -show and change history
Reviewed-by: chegar

- src/java.base/share/specs/serialization/changelog.md
! src/java.base/share/specs/serialization/class.md
- src/java.base/share/specs/serialization/images/class.gif
! src/java.base/share/specs/serialization/index.md
! src/java.base/share/specs/serialization/security.md
! src/java.base/share/specs/serialization/serial-arch.md