prepare for heroku

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

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
fix npm for heroku

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
make listen on env.PORT

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

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