Add failed check to list
Forgot to reference exception to print
Add 'configcheck' option to check yaml files
Actually add checkconfig for yaml, undelete riak example
Remove extra imports
Add link to online yaml checker, verify init_config and instances sections
Add configcheck options to init scripts
Check that instances contains a list of dicts
Fix typo
Merge pull request #713 from DataDog/yaml-validate

Add failed check to list