- Updates for test harness construction
- Include test harness project
- Update Accumulator interface to have an add(long) method for recording data.
- Further refinements
- Mutator refactorings
- Cleanup
- Rework AbstractAccumulator and WindowedCounter to use new Mutator registry
- Continue work on cleanup up JMX publisher
Mutator registry changes to avoid leaks and locks

Chaning mutator registry to avoid leaking mutators under high thread
turnover scenarios.
Mutator registry changes to avoid leaks and locks
Removing MutatorScavenger
Simplifying Registrar implementation

Removing Registrar's ability to manage dynamic listeners and unregister existing
nodes.  Also ensuring that Registrar, and related child objects, always
return no-op instances when asked for things that do not exist.
Drastically altering counter infrastructure.

It's a bit slower in tests... may very well need some more tweaks.
Spring integration updates and unit test helpers.
Unit testing additions and refactoring
Refactor Stopwatch to work more efficiently
Support for node templates in spring config
Merge branch 'spring-work' into dev
Spring integration for core calculators
GlobMatch updates
Update CSV columns to include units if available.
Changed CalculatorAttribute to CalculatorProperty
Allow usages of templates to be renamed.