generate-swig-docstrings does not handle complex types

[Anders Logg (Chalmers)]

generate-swig-docstrings fails for complex types involving std::pair, for example

std::map<unsigned int, std::vector<std::pair<std::size_t, unsigned int> > >

[Anders Logg (Chalmers)]

Fix issue #266: generate-swig-docstrings does not handle complex types

→ <<cset b879d0aa6eb6>>