Added Caching

Signed-off-by: Hounddog <martin.shwalbe@gmail.com>
Modified tests for Cache implementation
Added More Tests
PHPCS FIX
Set Eventlistener to run last
Merge pull request #7 from Hounddog/feature/updates

Feature/updates implemented caching
Added README to repos
Added test for README
Added test for README
Merge pull request #8 from Hounddog/feature/updates

Feature/updates
Added Markdown rendering