formulas to using MathJax (with cdn.llnl.gov).
Move external function declarations for METIS 4 and LAPACK outside
the mfem namespace and in the beginning of their respective files
(otherwise doxygen was showing them as part of the mfem namespace).
Improve some deprecation documentation.
Fix a typo in doc/makefile.
- MFEM_VERSION_TYPE=MFEM_VERSION%2, with corresponding constants
MFEM_VERSION_TYPE_RELEASE=0 and MFEM_VERSION_TYPE_DEVELOPMENT=1,
- MFEM_VERSION_{MAJOR,MINOR,PATCH}, based on MFEM_VERSION.
Set the MFEM_VERSION to 3.3.1 - a development version.