Refs #472 Making eventValue match work by only matching events actions + adding test

plugins/Actions/Archiver.php

plugins/Events/Events.php

plugins/ExamplePlugin/ExamplePlugin.php

plugins/ExampleVisualization/ExampleVisualization.php

tests/PHPUnit/Fixtures/TwoVisitsWithCustomEvents.php

tests/PHPUnit/Integration/CustomEventsTest.php

...Actions.getPageUrls_lastN__API.getProcessedReport_day.xml

...n/expected/test_CustomEvents__Actions.getPageUrls_day.xml

...expected/test_CustomEvents__Actions.getPageUrls_month.xml

...tegration/expected/test_CustomEvents__Actions.get_day.xml

...gration/expected/test_CustomEvents__Actions.get_month.xml

...cted/test_CustomEvents__Live.getLastVisitsDetails_day.xml

...ed/test_CustomEvents__Live.getLastVisitsDetails_month.xml