yum_package when rhel, pin version and allow downgrade
Merge pull request #50 from grizo-rm/master

yum_package when rhel, pin version and allow downgrade
Untabify, strip ws
Cosmetics
Cassandra 2.0.6
Support xmx as well as max_heap_size, fixes #48
Make sure the list of seeds includes our own node

Makes single node cluster provisioned with all defaults functional.
Bring attributes documentation up-to-date
Add support for more advanced Cassandra configuration attributes.
Merge pull request #51 from dpkp/config_attributes

Add support for more advanced Cassandra configuration attributes.
Only generate row_cache_provider if it's non-standard, references #52
Generate commitlog_sync* attributes based on commit log sync preference

Fixes #52.
Bump version to 2.2