Points fillStyle fix
Points fillStyle fix

Apply the fillStyle option (calculated from series defaults, instead of
series color for fill.  Set opacity default to 1 for backwards
compatibility.  Opacity will now be applied.

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