Adding a check if exodus file was opened before calling copy_nodal_solution()
Adding simple support for copying elemental solutions from exodus files
Merge pull request #124 from andrsd/elem-vars

Adding simple support for copying elemental solutions from exodus files
Use multiple lines (with line continuation characters) for macros in libmesh_common.h
Added SerialMesh::stitch_surfaces to stitch adjacent surfaces on the same mesh.
Fixed errant whitespace
Merge pull request #127 from dknez/stitch_surfaces

Added SerialMesh::stitch_surfaces to stitch adjacent surfaces on the sam...
Merge pull request #126 from jwpeterson/multiline_macros

Use multiple lines (with line continuation characters) for macros in lib...
Checking if the file is "created" is overzealous.  It can be open
without being created...  To be safer we should probably add a new
flag, called _is_open, that gets set when you call
ExodusII_IO_Helper::open()...
Added N^2 node search option back into SerialMesh::stitch_meshes. This option is more robust in the case that we have tolerance issues that lead to less accurate alignment of the nodes that are to be stitched.
Added an extra error checking flag for the case where we expect the number of nodes on the stitched surface IDs to match
temporarily remove FP_USE_THREAD_SAFE_EVAL until adaptivity_ex5 works again.
Adding Botti 2013 preprint.
Merge pull request #128 from dknez/master

Added N^2 node search option back into SerialMesh::stitch_meshes.
Define FP_USE_THREAD_SAFE_EVAL consistently
Re-enable thread-safe fparser

Now that it's consistently defined, adaptivity_ex5 passes for me
again.
Make copy_nodal/elemental_solution() fail with the same error whether
you are using opt or debug mode.

MeshBase::elem()/node_ptr() assert in debug mode if an element/node is
not found, but return NULL in opt mode.  query_node_ptr() and
query_elem() return NULL in either mode, allowing the user to do his
own NULL checking.

Also fix one whitespace error.
Adding Krol preprint.  The DOI does not seem to be active yet.
Adding Hales, 2013 preprint.
Fixing an error in homemade remove_if algorithms.