big speedups for naive volume renderer
reverting accidental enabling of openmp in poor spot
code cleanup and add some caching
fixing color table with raw opengl renderer.
moving a lot of opengl-specific annotation into new gl render surface.
fix crashes on degenerate shapes in simple volume renderer.
new option in simple volume renderer to only sample within tet.
this is a big speedup (3x) for very small meshes, but for very
large meshes can be a small (<10%) penalty.
fixing mismatch new/delete and making various dtors virtual.
Updated configre file to be nicer to/with ADIOS, cosmetic changes to XGCParticleImporter.
adding config site for new desktop
ignore degenerate tetrahedra
moving 2d text rendering code into render surface.
adding start of world space annotator and use it for 3d axes, bbox.
Merge branch 'master' of github.com:jsmeredith/EAVL
allow 3d lines to bump themselves slightly forward
adios_config was not working correctly. Roll back to the old way...
starting world text annotations.
various small adios, mpi fixes.
also added adios to workstation config site.
moving remaining text annotation opengl specifics into world annotator.
should be using pre-transformed coords to determine axis extents.