Some changes to random key generation


Conflicts:
	src/main/java/org/apache/ws/security/processor/EncryptedKeyProcessor.java

git-svn-id: https://svn.apache.org/repos/asf/webservices/wss4j/branches/1_6_x-fixes@1621330 13f79535-47bb-0310-9956-ffa450edef68