Added functions for computing entropy on binned data
Functions in nsb now accept an optional parameter to specify cardinality
Added function to compute second entropy moment in nsb
Small cosmetic change
Included nsb.jl in binned.jl
Made some changes to the basic entropy computation
Added function to compute information of a confusion matrix
import StatsBase
Added functions to deal with limiting cases
Compute the log of rho
Aded simple test function
Added function for computing entropy of stratified data
Added explicit return statement for entropy
Added functions for computing histograms
Include binned in Entropy
Added one example of how to use the nsb code
Added tests for binned.jl
Added bias.jl