* updated atomic radii to follow the Blue Obelisk Data Repository
Ubuntu package bodr version 10-1; radii are from file
/usr/share/bodr/elements.xml
* typo
* use 2.0 as default VDW radius instead of 1.7
for elements missing from the Blue Obelisk Data Repository
* Document the atomic_data
* update expected test results
* update java tests
* allow a bit more slop when comparing confs
For cross-platform stability