Initialize threading support properly with MPI2
Proceed anyway without MPI_THREAD_FUNNELED

Making appropriate warnings less imperative is the price we pay for
making overzealous warnings non-lethal.
Only output warnings from rank 0
Add libmesh_warning() to --enable-warnings
Use libmesh_warning() when unsure of MPI+threads

This way anyone who doesn't want users to be spammed with
usually-false-positive warnings can shut them up.
Allow dirichlet functions to return NaN

Functionality like this was requested long ago; if I'd known it would
be a one-line change I would have implemented it then.
Slightly more DirichletBoundary documentation
Replacing tab characters used for indentation.
Merge pull request #231 from libMesh/dirichlet_nan

Dirichlet nan
Don't introduce trailing whitespace in reference_elem.data unnecessarily.
Adding one_pyramid13.xda reference element file.

Regenerating src/geom/reference_elem.data with Pyramid13 and without
trailing whitespace.
Update github traffic.
rely on libmesh_isnan() for intel-11.1, oracle 12.3, etc...
Make only weekly plot by default.

The monthly plot does not yet have enough data to be interesting,
the daily plot is too choppy to draw much of a conclusion from.
Adding Ballarin, 2014.
adaptivity ex5 fails in 1D
update files to fparser 4.5.1
add threadsafe eval patch by Roy H. Stogner
Fix for fparser optimization with NaN

This probably isn't the only place where the optimizer is implicitly
assuming that values aren't NaN, but it's the only one I could find
and it's sufficient to fix my test case.
Define NaN for fparser