shared library projects

[killerbot]

I noticed some strange things, or more inconsistencies in the shared library wizards.

1) language
- on linux the wizard allows you to choose between : C or C++
- on windows you don't have that choice [and I guess it might be C++, since the compiler invoked was mingw32-g++]

2) header file
- on windows you get the header file 'exporting' (declaring) the methods
- on linux there's only an implementation file

Any thoughts on this ?