* Mutator and Generator where merged.
* A single pass over all duplications was made.
* It is clear a specific handles?(node) code for finding mutators
is needed. Like virtus does for attributes, should also cache.
* Does not pass on 1.9 mode currently as blocks are unexpectly parsed
differend when it comes to a series of literal booleans.
* Adjust metrics
* Add initial integration spec on method matching
* Yard and Heckle coverage is at 100% (heckle cov is disputable)
* Rcov does not really make sense as MRI 1.8 cannot reach all code
paths.