Use the install-sh script that comes with libmesh.
Use the install-sh script that comes with libmesh.

Refs #6741.

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