changed methods relying on static Hashtables to use protected instance values.
fixed position of INSTANCE to after static initialiser...
fixed spelling
added copying of static data to protected fields.
fixed recognition of BC named curve spec class.
clean up
added test for named curve preservation
changed visibility to public
changed method exposure.
added missing constructor.
Add TLS 1.2 support to TlsSigner and implementations
Remove unused import
Add new constructor to take the OID explicitly, to allow use with
NullDigest
Add TLS 1.2 support for raw signatures/verification
Make use of the SignatureAndHashAlgorithm when processing
CertificateVerify
Indicate where SignatureAndHashAlgorithm has to be selected when sending
CertificateVerify