Upgrade cql driver to 1.0.8

Conflicts:
	features/cassandra/client/org.wso2.carbon.cassandra.datareader.feature/pom.xml
Merge pull request #55 from hastef88/upgrade_to_cql_1.0.8

Upgrade cql driver to 1.0.8 and cassandra version to 1.2.13.wso2v5