Since I won't be contributing to the roadrunner trunk any more, this branch will basically become 'Lucian's personal fork of roadrunner', synced with 'develop', but with the changes "Will work in debug mode for Visual Studio" and "Can be checked out via SVN".

The changes here are for precisely that purpose:  the extra libsbml directories make the SVN bridge crash, so those are removed, and the changes to source/ are so that roadrunner does not pass around a pointer to the first element of an empty vector, which is technically legal in the C++ spec, but which VS assumes is an error on your part.