Bump the cassandra versions for DataStax Community

Bumped the cassandra versions for the dsc install to:
 * cassandra = 1.2.10
 * dsc = 1.2.10-1

This is currently only being used in the local environment
Updated cassandra.yaml config in the cassandra module to 1.2.10
Merge pull request #88 from simong/cassandra

Bumped the cassandra versions for DataStax Community
Bump release environment to 5.0.0
Merge branch 'master' of github.com:oaeproject/puppet-hilary
Remove .tar.gz suffix from filename
Bump staging and production to 5.0
copy previews.dir to previews.tmpDir
add comment about previews.dir removal timeframe
Merge pull request #90 from stuartf/previewsTmpDir

change previews.dir to previews.tmpDir
Bump release environment to bootstrap3 release
Update release environment to 6.0.0
Add archive etherpad install, remove git and apt
(EtherpadArchiveInstall) Update docs)
Upgrade production and staging to 6.0
Bumping release environment to 6.1.0 RC1
Upgrade release environment to 6.1.0
Bump production and staging environment to 6.1
Bump release environment to 6.1.1
Bump production to 6.1.1