[security-dev 01290]: Need reviewer for 6889552: Sun provider should not require LDAP CertStore to be present

[Alan Bateman]

Vinnie, Sean,

The Sun provider has a dependency on JNDI due to the LDAP CertStore 
implementation to fetch certs and CRLs from an LDAP directory. I'd like 
to remove this dependency with the following patch:
 http://cr.openjdk.java.net/~alanb/6889552/
In summary, it just moves LDAPCertStore into an ldap sub-package and 
changes URICertStore so that it delegates via a helper class.

Thanks,

-Alan.