RevokeableDynamicPolicy

[Peter Firmstone <ji...@zeus.net.au>]

Just did some serious refactoring, made significant changes to 
RevokeablePolicy, now called RevokeableDynamicPolicy.

I know that it's a little out of character, Java 2 doesn't support 
Policy denial, only grants.  I created denials predominately for 
Certificate based grants, so that trusted developers, can be identified 
by their Certificates, while vulnerable CodeSource's and codebase URL's 
can be denied permissions, even if signed with trusted Certificate[] chains.

Now we need a URL format that contains version and Maven archiving 
provisioning information.

Note that while it is passing all tests, it is still experimental and 
more tests will need to be added.

Cheers,

Peter.