Added debian 7 support.
Updated logic based on rubocop recs.
Changed default root user to admin for wheezy.
Adding additional information for other Medidata mesos cookbooks that use this
cookbook.
Merge branch 'develop' into feature/add-wheezy-support

Conflicts:
	recipes/slave.rb
Merge pull request #27 from mdsol/feature/add-wheezy-support

Feature/add wheezy support