WIP What would happen if we proxy'ed pro?
Fixing ConnectionLocatorTest as 'mock' is not a valid driver.
Optionally inject an already existing instance of PDO
Test all the things, injected or constructed.
Docblock fixes
Connection should be created lazily.
After fixing the lazy connection this test refactor was unnecessary, reverting.
Merge pull request #68 from stanlemon/pdo-proxy

Proxy PDO object and add support for injecting an existing PDO connection