bmon: update from 2.0.1 to v3.3 latest.

Signed-off-by: Žilvinas Valinskas <zilvinas.valinskas@gmail.com>
bmon: drops 'shallow' from formula, not needed.

Signed-off-by: Žilvinas Valinskas <zilvinas.valinskas@gmail.com>
bmon: use 'head do' for HEAD build dependencies

Signed-off-by: Žilvinas Valinskas <zilvinas.valinskas@gmail.com>
bmon: add 3.3 bottle.