Beginings of play agent
Added play-test dependency and got first basic test working.
Fixed AspectJ syntax errors
Corrected return type in GlobalSettingsMonitoringAspect and added plus sign to Pointcut since the target is an interface (trait)
Added additional test for counting multiple requests.
Tidy up
Improved javadoc
Addressed review comments.
Merge pull request #104 from cpcundill/play-agent

Beginnings of Play agent