Added stat_utils.py
Added getElementConnections, a function to take a list of connection lists and create element-wise connections dictionaries
Added the function zipIntoPairs that creates all adjacent pairs in a list
Added dnmPrivate to .gitignore
Added the chaining function "getChainsFromConnections" to list_utils
Added polyCirculationDirection (gets cw/ccw direction) and updated polyArea and polyCentroid to even more condensed expressions
Added the function getValuesAroundPointInArray
Bump version to 0.3.1.0
Updated change log and bump version to 0.3.1.1