RFR: 8170157, 8170245: Enable unlimited cryptographic policy by default in OracleJDK

[Seán Coffey]

Looking to backport 8170157 to jdk8u-dev. The 8170245 test bug also gets 
pulled in for this port since some tests need cleaning up to deal with 
unlimited crypto environment.

webrev : 
http://cr.openjdk.java.net/~coffeys/webrev.8170157.8u.01/webrev/index.html

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Regards,
Sean.