Converted package name into variable, so you could install different versions of cassandra
Cassandra 2.0.1
Bump version to 2.0
Update README.md
Update README.md
Merge pull request #22 from gansbrest/dynamic_package

Converted package name into variable, so you could install different versions from the same yum repo
Merge branch 'upstream_master' into opscenter

Conflicts:
	README.md