diagonals 0.4.0
===================

* various small fixes


diagonals 0.3.0
===================

* replace all previous functions with fatdiag

* add fatdig <- function


diagonals 0.2.0
===================

* add support for replacement other than 0 (zero)

* break out rectangles to separate functions: rectangle_matrix() and minus_rectangle_matrix()


diagonals 0.1.0
===================

* block_matrix(): for extracting block diagonals

* minus_block_matrix(): for dropping block diagonals

* add support for non-square matrices
