<i18n dev> [9] RFR: JDK-8027607, (rb) Provide UTF-8 based properties resource bundles (JEP-226)

[Naoto Sato]

Hello,

Please review the changes for the following issue, which is the 
implementation part of the JEP-226 
(https://bugs.openjdk.java.net/browse/JDK-8043553)

https://bugs.openjdk.java.net/browse/JDK-8027607

The webrev is located at:

http://cr.openjdk.java.net/~naoto/8027607/webrev.00/

Naoto