AMY release v1.3.2

This note was taken from v1.4.0; sorry for the brevity.

New feature: stop using dots (.) for usernames, use underscores (_) instead.

This was an interesting issue: since we rely on some Ruby software on the SWC website, we can't have dots in filenames (they're treated as parameter access operator, for example: banaszkiewicz.piotr is piotr parameter on banaszkiewicz object). But we have filenames that correspond to usernames in AMY. So it was necessary to drop dots and switch to underscores…