Added some new debugging code, removed some old debugging code, some small coding standard tweaks
Added deleteAll() member to VoxelNodeBag class
fix typo
Latest work on new voxel sending strategy
- removed mutex locking for now. do we need this?
- fixed bug in createMissingNode() where we would accidentally stomp on
  a previously created peer tree while creating a new node
- improved printTreeForDebugging() to include more details
- fixed a bug in readBitstreamToTree() for multi-tree case where we
  weren't correctly walking through the buffer
added support for command line option to use OLD or NEW voxel distribution schemes
- moved new voxel distribution strategy to helper function
- added back old technique
- added "--newVoxelDistributor" command line option
- fixed crashing bug for derefrencing NULL pointer in case where server is started
  which interface agents already in the domain. Basically agentData may not yet
  be setup properly
- added proper cleanup support to node bag in case where voxel tree is erased
- first cut at new version of sphere scene, we will make it richer in case of
  new distribution
- bumped packets per interval to 5