Made a series of changes involved in changing the current method to an
iterative, minimum based sampling method. It now modulates alpha in the
sample threads and stops sampling after it reaches a specific node
saturation (specified by alpha -- nodes needed =
alpha*parent.getVertexNum).

Change-Id: Ic2225aa13e02a390fbbae9ff19f3c6cd2aaa1d64
Made all the connections get carried over in the sampling method and
added another form of correlation, Kendall's distance

Change-Id: I802b7e1cf98e35d87a2f6ace5d5155d2534f2899