Missing license headers

[trepik]

Please include license headers for files:
reporter-config2/src/main/java/com/addthis/metrics/reporter/config/MetricPredicateTransformer.java
reporter-config2/src/test/java/com/addthis/metrics/reporter/config/GraphiteReporterConfigTest.java
reporter-config3/src/main/java/com/addthis/metrics3/reporter/config/MetricFilterTransformer.java
reporter-config3/src/test/java/com/addthis/metrics3/reporter/config/GraphiteReporterConfigTest.java

Thank you