Removed spurious quote

Unnecessary and unmatched close quote on graphite port meaning that if graphite
output is used the json no longer parses
[Untested] Ensure creation of json directory
Moved $json_dir into init
Added basic test
Basic tests for jmxtrans and jmxrans::metrics
Added a bunch more tests :)
Merge branch 'master' into hotfix/json_directory
Added tests to ensure /etc/jmxtrans is created
Wrote some special tests for resource duplication

- Include a manifest to define the 'scenarios' in a way that rspec can't
- Checks for resource duplication and defines a scenario where it SHOULD
  happen too.
Merge remote-tracking branch 'oholiab/master'
Manage the directory to remove old stuff