RFR: JDK-8211952: Broken links in java.time API

[Jonathan Gibbons]

Please review a scripted edit to fix references to the 
serialized-form.html file in java.time.** classes.

The edits were made by the following command, to replace the leading 
`../` in a reference to serialized-form.html with `{@docRoot}`.

sed --in-place -e 
's|"[./]*/serialized-form.html|"{@docRoot}/serialized-form.html|g' 
$(grep -rl -F '../serialized-form' 
open/src/java.base/share/classes/java/time)

I've posted a webrev, but you may find it easier to just scan through 
the patch itself.

JBS: https://bugs.openjdk.java.net/browse/JDK-8211952
Webrev: http://cr.openjdk.java.net/~jjg/8211952/webrev.00/

-- Jon