* stick_round_nub for COLLADA export
* UTF-8 in feedback
* display_scale_factor (ported from Incentive PyMOL)
* dx map import: support "type float" and skewed delta
- scenes: Restore the old behavior that when recalling a scene, all objects
which were not present when storing the scene are disabled.
- fix auto-complete for filenames with spaces
- fix an object menu panel group ordering problem
Refactoring:
- remove unused variables (Partly applies https://sourceforge.net/p/pymol/bugs/166/)
- lots of: char* -> const char*
- remove inline Parse functions, simplify ParseFloat3List
- make functions static
