DomainParameterSetEcdh is now able to produce matching EcParameterSpec
objects
PublicKeyReference: modified toString method to allow both for formatted
and unformatted output
Add hashCode() and equals() implementations

both based on the result of getAlgorithmIdentifier as this method uses
all relevant components and represents them in a comparable form.
Add JaxB serialisation test
Add EcParameterSpecAdapter
task became obsolete
Create IsoSecureMessagingCommandApdu interface

This allows to apply ISO-SecureMessaging on prprietary APDUs if their
content is encoded accordingly.
remove obsolete task
Resolve DEV task by adding API constraints
remove obsolete task
degrade XXX for possible future extensions to IMPL
tried it, did not work ;-)
Add API constraints (to ensure that no clones need to be returned)
Merge pull request #23 from alexfupp/serializeDomainParameterSetEcdh

Serialize domain parameter set ecdh
generalized method from DomainParameterSetEcdh to return an
AlgorithmParameterSpec for any DomainParameterSet. This can then be used
e.g. for key generation
Merge pull request #25 from slutters/persosim/cvCertChain

Persosim/cv cert chain
fixed typo
Merge pull request #24 from alexfupp/cleanupTasks

Cleanup tasks