Adding a symbolic link to Java, as it is overwritten by DSE installation via yum.
Cassandra config folder will be specified as an attribute and not hardcoded in datastax recipe for RHEL or Debian. We have to take into account that since DSE 4.5, config folder changed to /etc/dse/cassandra.
Removing not valid configuration entries from yaml file.
Adding EPEL for DSE 4.5 as it is required according to documentation.