Allow configuration parameters to be applied to default server.
Merge remote-tracking branch 'origin/master' into hotfix/allow_default_config

Conflicts:
	manifests/init.pp
Expose redis_saves parameter to redis class.
Factor common facts into top of class spec tests and check that things compile.
Add spec test for new parameters on redis class.
Merge remote-tracking branch 'origin/hotfix/allow_default_config'

Merges pull request #18.