Merge pull request #39 from kpartlow/master

Added tests to NCubeManager
- multiMatch supported removed.  DISCRETE, RANGE, SET, and NEAREST axes will only bind to one value.  If you need an axis to bind to more than one value, use a RULE axis.
- Ability to start rule axis execution at a specific rule by adding the [ axisName: ruleName ] entry to the coordinate name.  In other words, bind the rule name to the RULE axis and you're golden.
- containsCell() simplified now that multiMatch is removed.  There is now containsCell(Map coordinate) and containsCell(Map coordinate, boolean useDefault).  The later API will return true if a defaultValue is set, and the useDefault argument is true.
Updated TestNCubeManagerTests and GroovyMethod tests
Merge branch 'master' of https://github.com/jdereg/n-cube