Revert "Add a few more handy utilities (thanks, HMRC)"

This reverts commit fe5059c6c360aeed85d2ca9618da8b00d1e75050.

Revert "Add fail2ban, harden.  Fix virtualenvwrapper issues"

This reverts commit 541009105263c9554658cbcbc4d6d4c484fc607e.

Revert "Add puppet-harden and fail2ban"

This reverts commit 5306615403d4747765991e26635055652815bb99.

Revert "Add showcase role, rationalise fabric"

This reverts commit 221021c1958a4a96340b6d3cb22e6913e4c30dc9.