Add a suffix of the metric name to the named metrics so that classes can
be annotated with @Timed, @Metered, etc at the same time without having
to specifically name the metrics.
Change to use metric annotation's simple name for the name of an
un-named metric to avoid collisions on names when a class is annotated
with multiple unnamed metrics.
Merge pull request #7 from TechBlueprints/fix-multiple-metrics-with-same-name

Add a default suffix to the metric name