Small fixes for the dependencies file used by Hadoop automatic installer.
Merge branch 'master' of https://github.com/ibmcb/cbtool
1 Bugfixes for cassandra_ycsb
2 Bugfixes for mongo_yscb
3 Changes to make ibm_daytrader more portable: now the instance name and
the username that CB uses to connect to the VM can be different
4 Bugfixes for hadoop
5 New Virtual Application type: redis_ycsb