libMesh v1.2.1
The main purpose of this release is to backport the bundled NetCDF 4.3.1 -> 4.4.1.1 update to the 1.2.0 release, plus fix a few other minor bugs/issues that have popped up in the meantime.
For a list of other bugfixes/changes from 1.2.0 -> 1.2.1, please see the NEWS file in this release.