Updated tests for mixing with 2013 test data.
Merge branch 'master' of git://github.com/KRD-KOMM-VL/verifikasjonsprogramvare
Moved calculateAggregateKey() invocation from
MixingVerificationWorker to IzkpMixing class to fix
parallelisation issue.
Changed the helper constructor ElGamalPublicKeyList(BigInteger h)
so that it sets the aggregateKey.
Added propertiesfiles for 2013 to IzkpMixingFunctionalTest and
changed the database name in the properties file for IzkpMixingIntegrationTest.