the default recipe no longer should be combined with replicaset or shard, so it does not need to check if the replicaset recipe is loaded
Merge branch 'master' into simplify-default
Merge branch 'master' into simplify-default

Conflicts:
	recipes/default.rb
be consistent with is_
Merge branch 'master' into simplify-default

Conflicts:
	recipes/default.rb
	recipes/mongos.rb
Merge pull request #238 from jspiewak/simplify-default

the default recipe no longer should be combined...