Added TriangleIterator (experimental)
Fixed BufferMapper::Unmap crash when called twice
Added TriangleIterator::Unmap()
Renamed VertexMapper::GetTotalVertexCount

To GetVertexCount
Fixed POSIX build
Merge branch 'master' of git://github.com/DigitalPulseSoftware/NazaraEngine
Fix merge conflict with DigitalPulseSoftware.