Function get_rows accepts parametrized querys
Histogram view with data loaded from the database.
Histogram with option to group elements and show error bar
Histogram with option to show accumulated metrics
DBSCAN view with a simple Scatterplot
DBSCAN implemented
Added get_GET_float() to Utils class
Fix: Only save query cache file if cache is active

Right now, even with cache disabled, when performing a query the result will be saved. This leads to permission errors when executing phpunit tests with a user different than www-data.
DBSCAN keep cluster theme between updates
DBSCAN disable animation between updates
DBSCAN now has a new Cluster class to keep info about the points it contains
DBSCAN click on point now zooms to fit its cluster
DBSCAN with heuristic parameters
DBSCAN Cluster now accepts values in the constructor
DBSCAN moved heuristic code inside and added tests
DBSCAN Fix: heuristic works with overlapping points
DBSCAN heuristic tests with real data points
DBSCAN heuristic added more tests with real data points
DBSCAN show number of points of every cluster
DBSCAN added option to change zoom to 1:1