RFR(m): 8067316: update RMI test library with better test.timeout.factor handling

[Stuart Marks]

Hi all,

Please review this change, which adds handling of the test.timeout.factor 
property to the RMI tests. These tests have a fair number of internal timeouts; 
this change multiplies the timeout values by test.timeout.factor so that 
timeouts will be less likely on slow systems, where a timeout factor has been 
applied.

In order read this property, a bunch of the tests' security policy files needed 
to be updated. This mainly impacted the policy files for the rmid activation 
group JVMs. I took the opportunity to clean up these policy files as well so 
that they're all fairly consistent among themselves.

The change updates a couple dozen policy files in a fairly stylized fashion. The 
actual code changes are concentrated in the files ActivationLibrary.java, 
JavaVM.java, RMID.java, and TestLibrary.java, which all appear at the end of the 
webrev.

Webrev:

     http://cr.openjdk.java.net/~smarks/reviews/8067316/webrev.0/

Bug:

     https://bugs.openjdk.java.net/browse/JDK-8067316

Sandbox changeset:

     http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/419205f6b2d9

Thanks,

s'marks