Merge pull request #317 from virtual-world-framework/mars-game-staging

Mars game staging
Merge pull request #325 from virtual-world-framework/mars-game-staging

Mars game staging
Merge pull request #335 from virtual-world-framework/mars-game-staging

Mars game staging
Merge pull request #339 from virtual-world-framework/mars-game-staging

Mars game staging
Fixed dust and lights/shadows following camera
Fix edit tool tiles
Additional fix
- Disabling a repetitive hint.  We don't really need to say this twice.
Fixed camera not going to top down when toggling tiles
Fixed camera pose matrix
Added triggers
Added trigger use example
Remove camera lock
Added action descriptions
Get rid of the last remaining layered sounds.
Adjusted sound volumes to bring out the success/failure music more strongly.
Add the cinematic camera to all levels.
- subtitle updated
- Fixed a subtitle error.
- The log message when a scenario starts now precedes the actual
  initialization.
- Removed a couple AND clauses that only had one child (leaving just
  the child).
Ken McClure: Update to rocks and boulders.  Moved the small rocks further away from mini rover tracks and added in three large boulders.