Update lieningen midje profile

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Merge branch 'master' of github.com:michaelbarton/dotfiles
Remove cache dir if it already exists

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Add mk_cache plist

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>