BulletSim: fix BulletSim crashing if there is no [BulletSim] section
in any INI file. Update TODO list.
Merge branch 'master' of git://opensimulator.org/git/opensim
BulletSim: add gImpact shape type. Add logic to use gImpact shape
for prims that have cuts or holes. Default logic to 'off' as it
needs debugging.
BulletSim: add code to experimentally use asset hull data.
Default to 'off' as it needs debugging.
BulletSim: update DLLs and SOs with version containing gImpact code.