add aerospike, runs success but  have not modify the tests yet.
bash commands
ignore props file for dbs
add cassandra cql, which has the client version 1.0.3. Need to add 2.0+ later
mvn install success wait for test
cql  benchmark works: client version: 2.0.2, cassandra server version: 2.0.7
change bash script for executing different num of threads
Merge pull request #1 from pzang/add_aerospike

Add aerospike and Cassandra CQL3