OPEN - issue YZABP-188: Re-work App/Library code 
https://illuminadev.co.uk/jira/browse/YZABP-188

Rename 'Things' => 'Thing'
Merge branch 'master' of https://github.com/illuminadigital/phphealthvault.git
OPEN - issue YZABP-188: Re-work App/Library code 
https://illuminadev.co.uk/jira/browse/YZABP-188

Fix up the BaseThing
OPEN - issue YZABP-188: Re-work App/Library code 
https://illuminadev.co.uk/jira/browse/YZABP-188

Adjust the namespaces for the Proxies.
Substitute the App's vocabulary handling for an interface