Updating iron definition

Rewritten ECF by EiffelStudio

Merging benchmark ecf into main one

Adding extra assertions, making tests run

Documentation cleanup

Adding max_index and min_index on vectors

Simplification of quicksort

Improved use of cursors in is_pivot and is_unit

Adding test if a matrix is a pivot matrix (preparation of LU decomposition)

Implemented mode on vectors

Adding iron file, renaming ecf to contain -safe

Adding rows and columns iterators

First examples

Fixing merge bug, removing obsolete warning

Merge branch 'master' of https://github.com/schoelle/algae