Updating GmshIO

* Minor formatting, coding guidelines changes.
* Use std::string and std::getline to read file.
* Properly handle EOF and bad stream states when reading file.
* Avoid repeatedly declaring new variables for reading in node ids.
* Moving member functions out of header.
* Add documentation.
* Print a warning if there are unparsed tags for an element.
* If we read nnodes, make sure it matches eletype.nnodes.
* Check that we found a recognized element type.
* Catch the Elem pointer that add_elem() throws back to us.
* Verify that the libmesh Elem we build has the same number of
  nodes as the Gmsh file expects it to.

include/mesh/gmsh_io.h

@@ -132,37 +132,9 @@ class GmshIO : public MeshInput<MeshBase>,
    * Flag to write binary data.
    */
   bool _binary;
-
-
-
 };
 
 
-
-// ------------------------------------------------------------
-// GmshIO inline members
-inline
-GmshIO::GmshIO (const MeshBase& mesh) :
-  MeshOutput<MeshBase> (mesh),
-  _binary        (false)
-{
-}
-
-
-inline
-GmshIO::GmshIO (MeshBase& mesh) :
-  MeshInput<MeshBase>  (mesh),
-  MeshOutput<MeshBase> (mesh),
-  _binary (false)
-{}
-
-inline
-bool & GmshIO::binary ()
-{
-  return _binary;
-}
-
-
 } // namespace libMesh
 
 #endif // LIBMESH_GMSH_IO_H