STLplus C++ library collection SVN stlplus3

ported DLL building in shared_library_test and the dynalink use of the resulkting DLL to Visual Studio

updated to work with shared library in platform subdirectory

Added a test that the shared library returns a sensible result

Reduced the example to its minimal form for gcc

Shared library is now generated in the object code subdirectory

Start of experiments with building and using shared libraries

Added Visual Studio 2015 project and solution files. Rationalised the
settings and ensured consistency across all libraries and tests in the project

Fixed minor bug - used no-array delete for deleting an array

Up to date with compiler support and recent tests

Updated instructions for Visual Studio