RFR 8154192: Deprivilege java.scripting module

[Sundararajan Athijegannathan]

Please review fix for https://bugs.openjdk.java.net/browse/JDK-8154192

java.scripting module is assigned to platform class loader (instead of
boot loader). And java.scripting module is given AllPermission
[previously it had AllPermission implicitly because of being boot loader
code]

jdk repo:

http://cr.openjdk.java.net/~sundar/8154192/jdk/webrev.00/

top level repo:

http://cr.openjdk.java.net/~sundar/8154192/top/webrev.00/

Tests: javax.script API tests, jrunscript, jjs tool tests and nashorn tests.

Thanks,

-Sundar