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
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.
Added build scripts from Derek