Vector: Slight reordering and huge clean-up of documentation. By clean-up I mostly mean removal. Much of the documentation only stated the obvious and made it harder to get a good overview of the interface. Might remove even more in the future.
Matrix: Added slightly forgotten negation operator.
Vector: Renamed general (safe) accessor to at.
Merge pull request #12 from SkipIfZero/feature/vector_cleanup

Feature/vector cleanup