fix inconsistent comms
Fix some doxygen comment mistakes
Merge pull request #75 from dmcdougall/fix_docs

Fix some doxygen comment mistakes
One line bug fix for CondensedEigenSystem from Shiyuan Gu
Initial implementation of broadcasting vector of strings and map containing strings
Broadcast strings with the mesh
Merge pull request #77 from permcody/parallel

Initial implementation of broadcasting vector of strings and map containing strings
optional communicator to mesh constructor.  defaults to CommWorld, not used ATM.
make beautify
begin using per-object communicators in mesh classes
libMesh::ParalellObject base class for all things that require their own communicator reference.
derive key data structures from ParallelObject
refactor DofMap as a ParallelObject
refactor BoundaryInfo as a ParallelObject
refactor to use per-object decomp info
refactor ExodusIO/NemesisIO as ParallelObjects
refactor XdrIO as a ParallelObject
refactor ExodusIO/NemesisIO as ParallelObjects
refactor MeshBase as a ParallelObject
refactor ParallelMesh as a ParallelObject