cold of heatmap is now white not blue
added a permanent dummy data file and cleaned up stats module
added a coordinate conversion to the dartboard module to translate array index into dartboard coordinte system (ie x,y centred on bull)
resolved merge conflict that arose when we both tried to correct the coordinate -> array index mapping
added new config module to allow the sharing of configuration variables across different modules. Added meshSize to it as updated app and dartboard module to use this