Merge branch 'shared_ptr_directors'
* shared_ptr_directors:
Add director typemaps for pointer const ref types
Generation of director method declarations fixes
Add director shared_ptr typemaps for D
Add director shared_ptr typemaps for C#
Typo correction in changes file
Enhancements for directorin typemaps
Add director shared_ptr typemaps for Java
Director shared_ptr typemaps for scripting languages
R memory handling standardisation
Scilab, R and Octave shared_ptr typemaps null fix
Octave and R shared_ptr typemaps update
Remove duplicate director shared_ptr pointer reference typemaps
For shared_ptr directorin, make copy of shared_ptr in all cases.
Add directorin typemap for Python and Ruby shared_ptr.
