Similarity Matrix Exploitation Tools

Addition of two functions and one script:
-strCmpRefined: similarity measure, takes two instances and gives out
the score. Takes the case where two missing attributes are equal to
each other into consideration.
-simiMatrixGenerator: takes a cell containing instances, the function
handle of a similarity measure and returns a similarity matrix
-SME_script: Similarity Matrix Exploitation script. Basically the place
where you play around with the two other functions.