Third beta of CAT 2.0

This is likely the last beta.

second beta of CAT 2.0

v2.0.0-beta2

Merge branch 'release_2_0' of https://github.com/GEANT/CAT into relea…

First beta version of CAT 2.0

v2.0.0-beta1

adding a missing visibility setting for the menu

CAT 2.0.0-alpha2

Almost feature complete and security audited

CAT 2.0.0-alpha1

This is the first stake-in-the-ground release of CAT 2.0; mainly created as a stable point of reference for the GEANT secure code audit team.