Changes:
New function revisedConsistency() added. Takes a PCM as the parameter
createLogicalPCM() which was in a separate package by the same name has
now been included in this version
All functions in the package that take a PCM as the input parameter have been modified to alternatively take a vector of the upper triangular elements of the PCM. A second parameter to these functions, typePCM (TRUE/FALSE), is used to indicate if the input is a PCM or a vector of the corresponding upper triangular elements.