Many instances where we would create a object via a new call, and then check that it was non-null.
This is redundant, as if we ever were in a situation where new failed, we'd be crashing left and right already, so the additional check is wasted processing.
* Made use of dStrIsEmpty in more locations (and fixed it :P)
* Removed commented-out code
* Corrected default params
* Fixed some console warning formats
* Removed tabs
* Corrected setExtent API
- Prevent stack corruption in a few places
- Use correct type in printfs
- Reduce type conversions in EngineApi & dAto*
- Fix compilation on GCC
- Tidy up code
