Correctly find the MOOSE python directory in presentation_builder.py
Correctly find the MOOSE python directory in presentation_builder.py

Refs #3815.

jessecarterMOOSE/moose,adamLange/moose,nuclear-wizard/moose,YaqiWang/moose,backmari/moose,dschwen/moose,waxmanr/moose,mellis13/moose,liuwenf/moose,jiangwen84/moose,idaholab/moose,permcody/moose,SudiptaBiswas/moose,adamLange/moose,backmari/moose,markr622/moose,yipenggao/moose,jiangwen84/moose,jhbradley/moose,wgapl/moose,dschwen/moose,raghavaggarwal/moose,dschwen/moose,joshua-cogliati-inl/moose,wgapl/moose,xy515258/moose,Chuban/moose,jasondhales/moose,yipenggao/moose,milljm/moose,liuwenf/moose,SudiptaBiswas/moose,lindsayad/moose,xy515258/moose,nuclear-wizard/moose,waxmanr/moose,stimpsonsg/moose,wgapl/moose,sapitts/moose,harterj/moose,adamLange/moose,bwspenc/moose,backmari/moose,harterj/moose,jhbradley/moose,yipenggao/moose,jessecarterMOOSE/moose,laagesen/moose,mellis13/moose,YaqiWang/moose,permcody/moose,nuclear-wizard/moose,Chuban/moose,milljm/moose,kasra83/moose,nuclear-wizard/moose,katyhuff/moose,friedmud/moose,permcody/moose,bwspenc/moose,joshua-cogliati-inl/moose,idaholab/moose,SudiptaBiswas/moose,idaholab/moose,raghavaggarwal/moose,bwspenc/moose,giopastor/moose,laagesen/moose,idaholab/moose,jasondhales/moose,sapitts/moose,mellis13/moose,andrsd/moose,dschwen/moose,raghavaggarwal/moose,sapitts/moose,liuwenf/moose,stimpsonsg/moose,laagesen/moose,giopastor/moose,jasondhales/moose,jessecarterMOOSE/moose,SudiptaBiswas/moose,andrsd/moose,markr622/moose,liuwenf/moose,kasra83/moose,liuwenf/moose,harterj/moose,capitalaslash/moose,SudiptaBiswas/moose,joshua-cogliati-inl/moose,lindsayad/moose,friedmud/moose,kasra83/moose,xy515258/moose,katyhuff/moose,stimpsonsg/moose,jessecarterMOOSE/moose,friedmud/moose,jhbradley/moose,Chuban/moose,bwspenc/moose,jasondhales/moose,milljm/moose,YaqiWang/moose,stimpsonsg/moose,waxmanr/moose,backmari/moose,giopastor/moose,harterj/moose,Chuban/moose,permcody/moose,capitalaslash/moose,katyhuff/moose,xy515258/moose,bwspenc/moose,lindsayad/moose,liuwenf/moose,giopastor/moose,andrsd/moose,andrsd/moose,YaqiWang/moose,laagesen/moose,raghavaggarwal/moose,dschwen/moose,lindsayad/moose,mellis13/moose,milljm/moose,friedmud/moose,laagesen/moose,yipenggao/moose,adamLange/moose,markr622/moose,milljm/moose,andrsd/moose,markr622/moose,jessecarterMOOSE/moose,sapitts/moose,jiangwen84/moose,jhbradley/moose,capitalaslash/moose,katyhuff/moose,idaholab/moose,wgapl/moose,sapitts/moose,harterj/moose,joshua-cogliati-inl/moose,capitalaslash/moose,lindsayad/moose,kasra83/moose,waxmanr/moose,jiangwen84/moose