Movement: no more querying for near Geodes in every step
Transform::mixed() accidently used a hardcoded 0.5f
fixed cc
remove tostring
rename unscaledMass to density
renamed prop_* prefix to m_*
fixed @psieg remarks about spelling and return value of Movement::perform() on intersection
adjusted commentstyle EVERYFREAKINGWHERE
removed doxygen-style comments where not necessary
Merge pull request #607 from voxelinc/comment_style_adjust

Unify commentstyle
Merge pull request #606 from voxelinc/mv-prop_-to-m_

Renamed prop_* prefix to m_*
Merge pull request #605 from voxelinc/mv_mass_to_density

Rename unscaledMass to density
Merge pull request #594 from voxelinc/movement_improvement_2

Movement performance improvement
merge with master
Merge pull request #604 from voxelinc/remove_tostring

Remove tostring()
merge with master; add usage comment for WorldTreeHint