moar comments

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
middlewares -> middleware

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
rename id middleware to uuid, it's a bit less cryptic

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
kill get_io

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>