Make various MeshModifiers work with ParallelMesh

[jwpeterson]

The following MeshModifiers input files don't work in parallel with ParallelMesh enabled:

tests/mesh_modifiers/add_all_side_sets/less_simple.i
tests/mesh_modifiers/add_all_side_sets/simple.i
tests/mesh_modifiers/add_extra_nodeset/extra_nodeset_test.i
tests/mesh_modifiers/add_side_sets/cylinder_normals.i
tests/mesh_modifiers/add_side_sets/cylinder_normals_fixed.i
tests/mesh_modifiers/add_side_sets/cylinder_points.i

A typical cause for the error is calling an invalid function, such as n_sides(), on a RemoteElem, which looks like this:

[./include/libmesh/remote_elem.h, line 115, compiled Jul 30 2013 at 14:06:23

These could probably be fixed up, for example, flooding has to stop if it reaches a RemoteElem:

  if (elem == NULL || (_visited[side_id](0]).find(elem) != _visited[side_id].end()) || elem->is_remote())
    return;

Then there also needs to be some kind of communication step to sync up the MooseMesh::boundary_map object that is used by a lot of the MeshModifiers.

[jwpeterson]

In c1a7def:

Tests using MeshModifiers are restricted to using SerialMesh.
For more information, see #2129.

Refs #2105.
Refs #2129.

[amjokisaari]

Bump. I just ran into the issue today with AddExtraNodeset and parallel mesh. Error message: "Unable to locate the following point within the domain, please check its coordinates: (x,y,z)=(0, 0, 0)". This point does exist, and the error does not occur running with serial mesh.

[permcody]

Most of the MeshModifiers work with ParallelMesh DistributedMesh now, the rest have been properly restricted. I'm going to close this blanket issue. We'll open new specific issues as needed.