added new class
defined signature for dbscan
added to proj
added class for general gps tools and calculations on gps data
added get distance to gps tools
Merge branch 'master' of https://github.com/sw701e14/code into Clustering#15
moved clustering and added classes for points used in DBSCAN
added inheritance from point and renamed the clustering class
added a method for gpstools that takes two gps points
added method for getting the distance matrix
Merge branch 'master' of https://github.com/sw701e14/code into Clustering#15
found all core points
added find clusters function
removed the distance matrix and put it directly into the algorithm
ready for testing