Add a #error directive for compilers that don't support C++11.
Add a #error directive for compilers that don't support C++11.

Refs #6887.

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