Created the NeFreqbasedSum class which creates a one sentence summary of
the document simply based on the sentence which has the largest number
of important NE in it. The set of important NE is found by ranking their
frequency in the document. 

I added the method rankedNameEntityCount in Extractor 
and left all my nasty commented out code so you can see how long i was
trying to figure out how to get a list sorted by value from a map. God
that should have been easier. Matlab i miss you....