remember the current tab, fixes an error when clicking the "graph" tab in a fresh graph
remember the current tab, fixes an error when clicking the "graph" tab in a fresh graph

beastlike/Flotr2,beastlike/Flotr2,alanponce/Flotr2,nicgallardo/Flotr2,alanponce/Flotr2,nicgallardo/Flotr2,jessiejea/Flotr2,RobertoMalatesta/Flotr2,RobertoMalatesta/Flotr2,alanponce/Flotr2,beastlike/Flotr2,HumbleSoftware/Flotr2,jessiejea/Flotr2,HumbleSoftware/Flotr2,jessiejea/Flotr2