Added 4 test cases to helper method updateTableNNConditionHelper().
Added a logger to method updateTableNN(). Fixed a bug in string utility method stringArraySplice(). Changed its test case. Added one test case to method updateTableNN().
Added a utility method joinList() in StringUtility class. Added test case of it.
Case 3.2 of method doIt() has been finished. Have not found a good way to test it yet.
Added code to printHolder to print out SingularPluralTable.
Added a compareTo() method to SingularPluralPair class. Added a logger to addheuristicsNouns() method. Fixed a bug of the method.
Added some new content to readme file. Added some log msg to Learner class.