spiridoncha

Support octopus merge ('merge' with more than two parents)

7

I guess more then two parents not suppored because of syntax - `from_branch.merge(to_branch)`, while git use `git merge from_branch from_branch ...`. There is some limitation in this lib that may...

I know that the behavior with `preserve = true` in method `resize` is not implemented for all sparse matrices, but I think this is need to be reflected in the...