add ability to argumentatively adjust the position of the legend. Refs #7257
add ability to argumentatively adjust the position of the legend. Refs #7257

jessecarterMOOSE/moose,liuwenf/moose,liuwenf/moose,sapitts/moose,andrsd/moose,joshua-cogliati-inl/moose,jessecarterMOOSE/moose,laagesen/moose,harterj/moose,friedmud/moose,idaholab/moose,idaholab/moose,lindsayad/moose,sapitts/moose,nuclear-wizard/moose,harterj/moose,andrsd/moose,joshua-cogliati-inl/moose,joshua-cogliati-inl/moose,backmari/moose,katyhuff/moose,lindsayad/moose,permcody/moose,katyhuff/moose,laagesen/moose,liuwenf/moose,friedmud/moose,permcody/moose,sapitts/moose,permcody/moose,SudiptaBiswas/moose,bwspenc/moose,milljm/moose,liuwenf/moose,idaholab/moose,backmari/moose,milljm/moose,joshua-cogliati-inl/moose,andrsd/moose,laagesen/moose,jessecarterMOOSE/moose,Chuban/moose,friedmud/moose,yipenggao/moose,sapitts/moose,sapitts/moose,Chuban/moose,backmari/moose,liuwenf/moose,YaqiWang/moose,stimpsonsg/moose,yipenggao/moose,harterj/moose,Chuban/moose,katyhuff/moose,friedmud/moose,lindsayad/moose,YaqiWang/moose,milljm/moose,YaqiWang/moose,Chuban/moose,harterj/moose,permcody/moose,YaqiWang/moose,jessecarterMOOSE/moose,yipenggao/moose,liuwenf/moose,milljm/moose,lindsayad/moose,dschwen/moose,lindsayad/moose,nuclear-wizard/moose,stimpsonsg/moose,SudiptaBiswas/moose,katyhuff/moose,andrsd/moose,stimpsonsg/moose,dschwen/moose,bwspenc/moose,dschwen/moose,andrsd/moose,backmari/moose,nuclear-wizard/moose,jessecarterMOOSE/moose,bwspenc/moose,milljm/moose,SudiptaBiswas/moose,laagesen/moose,bwspenc/moose,idaholab/moose,bwspenc/moose,nuclear-wizard/moose,stimpsonsg/moose,SudiptaBiswas/moose,dschwen/moose,harterj/moose,SudiptaBiswas/moose,idaholab/moose,yipenggao/moose,laagesen/moose,dschwen/moose