Update of some warning messages

* ScriptData - Updated 'BROKEN SAVE STATE...' message to something a
bit more intuitive
* MaintenanceThread - Updated 'BAD VERSION ID...' message to something
a bit more intuitive
Correct 'update map' command

* MapImageModule - correct 'update map' command to actually do all
regions instead of the first one
  - if root is selected, all region maps are updated
  - if a region is selected, only updates the map for that region
Rename BulletSim namespace

* BulletSim files - Rename into WhiteCore name space in preparation for
further updates
Additional format check in load oar command

* Additional check for incorrect position of command line switches in
'load oar' command
Minor corrections to enable sync

Add debug/ to .gitignore
Correct changelog.txt. format?? (no idea why)