removed magic numbers for legend positioning irt #37
removed magic numbers for legend positioning irt #37

ajam/Chartbuilder,taylorhxu/Chartbuilder,ducroquet/Chartbuilder,ducroquet/Chartbuilder,johnsonchandra/Chartbuilder,correctiv/Chartbuilder,Quartz/Chartbuilder,kway/Chartbuilder,laurenancona/Chartbuilder,correctiv/Chartbuilder,bwareham/Chartbuilder2,nowthis/Chartbuilder,Quartz/Chartbuilder,SCPR/Chartbuilder,bryceroney/Chartbuilder,zhangweiabc/Chartbuilder,NerdWallet/Chartbuilder,bwareham/Chartbuilder2,conversation/Chartbuilder,valdobc/volt-teste,kway/Chartbuilder,DistilledLtd/Chartbuilder,zhangweiabc/Chartbuilder,ajam/Chartbuilder,defenseone/Chartbuilder,taylorhxu/Chartbuilder,smartkarma/Chartbuilder,NerdWallet/Chartbuilder,valdobc/volt-teste,defenseone/Chartbuilder,SCPR/Chartbuilder,johnsonchandra/Chartbuilder,bryceroney/Chartbuilder,nowthis/Chartbuilder,laurenancona/Chartbuilder,louisstow/Chartbuilder,DistilledLtd/Chartbuilder,louisstow/Chartbuilder