[edu.java.bdd] ... skeleton parent project for a set of sample
sub-projects for evaluating different Behavior Driven Development (BDD) frameworks.
[edu.java.bdd.cucumber] ... skeleton project for evaluating of the
"cucumber" (BDD) frameworks.
[edu.java.junit] ... (1) existing demo tests restructred and renamed; (2) two more new tests implemented.

	(1) following tests restructured and renamed due to improve tests
	    expressiveness and to correspond to the presentation chapters
	    numbering:

		- Unit1_SimpleCalculator_Addition_SimpleTest.java
		- Unit3_SimpleCalculator_Division_FurtherAnnotationsTest.java
		- Unit4_SimpleCalculator_Multiplication_SpringDependencyInjectionTest.java

	(2) following new tests implemented due to demonstrate some new
	    JUnit aspects:

		- Unit2_SimpleCalculator_Subtruction_ParameterizedTest.java
		- Unit5_SimpleCalculator_MultiplicationAndDivision_TestSuite.java