Add 1.6.1 to Changelog
Add 1.6.1 to Changelog

ScottLogic/d3fc-showcase,jleft/d3fc-showcase,djmiley/d3fc-showcase,ScottLogic/d3fc-showcase,rjmcneill/d3fc-showcase,ScottLogic/BitFlux,jleft/d3fc-showcase,rjmcneill/d3fc-showcase,jleft/BitFlux,jleft/d3fc-showcase,djmiley/d3fc-showcase,rjmcneill/d3fc-showcase,ScottLogic/BitFlux,djmiley/d3fc-showcase,jleft/BitFlux,ScottLogic/d3fc-showcase