Making objects that live on internal sides work with stateful materials - refs #2972
More work is needed for boundary material objects.
Merge pull request #2973 from permcody/internal_side_seg_fault

Making objects that live on internal sides work with stateful materials
Add PBS to random distribution spacing check (#2965)
Remove "math.h" include (closes #2980)
moose_test passes in parallel refs #2943 #2941
removing comm world from modules refs #2943 #2941
fix issue with deleting comm before finalizing output refs #2943 #2941
Check return code when calling subprocess and throw better error
closes #2898
Merge pull request #2987 from dschwen/feature_2965

Add PBS to random distribution spacing check (closes #2965)
Merge pull request #2988 from dschwen/feature_2980

Remove "math.h" include (closes #2980)
Add MooseMesh::minPeriodicVector (closes #2990)
Merge pull request #2991 from dschwen/feature_2990

Add MooseMesh::minPeriodicVector (closes #2990)
fix dmmoose and remove comm world enabling from libmesh build script refs #2943 #2941
Test reading a Gmsh file with BCs

The test reads a Gmsh file with lower-dimensional elements
which specify BCs, and solves a Laplace problem on that mesh.

Refs #1402.
Merge pull request #2976 from friedmud/no_comm_world

No comm world
libMesh update. Refs #000
Restricing test
refs #2972
Merge pull request #2994 from permcody/restrict_test

Restricing test
More operator spacing for #2951
Calculate gradient normal direction wrt PBCs.