[view/flot-graph,bugfix][xs]: fix exception on data change when flot not visible.
[view/flot-graph,bugfix][xs]: fix exception on data change when flot not visible.

rjsteinert/recline,GerHobbelt/recline,acouch/recline,maxogden/recline,rjsteinert/recline,beni55/recline,okfn/recline,acouch/recline,GerHobbelt/recline,beni55/recline,NuCivic/recline.js,NuCivic/recline.js,boban-dj/recline,modulexcite/recline,GerHobbelt/recline,beni55/recline,huangciyin/reclinejs-requirejs,okfn/recline,gotjoshua/recline,modulexcite/recline,gotjoshua/recline,boban-dj/recline,boban-dj/recline,NuCivic/recline.js,rjsteinert/recline,acouch/recline,okfn/recline,maxogden/recline,huangciyin/reclinejs-requirejs,modulexcite/recline,gotjoshua/recline